^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Simple benchmark program that uses the various features of io_uring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * to provide fast random access to a device/file. It has various
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * options that are control how we use io_uring, see the OPTIONS section
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * below. This uses the raw io_uring interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (C) 2018-2019 Jens Axboe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <assert.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <stddef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <signal.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <inttypes.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <sys/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <sys/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <sys/ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <sys/syscall.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <sys/resource.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <sys/mman.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <sys/uio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <pthread.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include "liburing.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include "barrier.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define min(a, b) ((a < b) ? (a) : (b))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct io_sq_ring {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) unsigned *head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) unsigned *tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) unsigned *ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) unsigned *ring_entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) unsigned *flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) unsigned *array;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct io_cq_ring {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) unsigned *head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) unsigned *tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) unsigned *ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) unsigned *ring_entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct io_uring_cqe *cqes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define DEPTH 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define BATCH_SUBMIT 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define BATCH_COMPLETE 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define BS 4096
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define MAX_FDS 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static unsigned sq_ring_mask, cq_ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct file {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned long max_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned pending_ios;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int real_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int fixed_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) struct submitter {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) pthread_t thread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) int ring_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct drand48_data rand;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct io_sq_ring sq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct io_uring_sqe *sqes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct iovec iovecs[DEPTH];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct io_cq_ring cq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int inflight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) unsigned long reaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) unsigned long done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) unsigned long calls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) volatile int finish;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) __s32 *fds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct file files[MAX_FDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) unsigned nr_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) unsigned cur_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static struct submitter submitters[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static volatile int finish;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * OPTIONS: Set these to test the various features of io_uring.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static int polled = 1; /* use IO polling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static int fixedbufs = 1; /* use fixed user buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static int register_files = 1; /* use fixed files */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static int buffered = 0; /* use buffered IO, not O_DIRECT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int sq_thread_poll = 0; /* use kernel submission/poller thread */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static int sq_thread_cpu = -1; /* pin above thread to this CPU */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static int do_nop = 0; /* no-op SQ ring commands */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static int io_uring_register_buffers(struct submitter *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (do_nop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return io_uring_register(s->ring_fd, IORING_REGISTER_BUFFERS, s->iovecs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) DEPTH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static int io_uring_register_files(struct submitter *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (do_nop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) s->fds = calloc(s->nr_files, sizeof(__s32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) for (i = 0; i < s->nr_files; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) s->fds[i] = s->files[i].real_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) s->files[i].fixed_fd = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return io_uring_register(s->ring_fd, IORING_REGISTER_FILES, s->fds,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) s->nr_files);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static int lk_gettid(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return syscall(__NR_gettid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static unsigned file_depth(struct submitter *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) return (DEPTH + s->nr_files - 1) / s->nr_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static void init_io(struct submitter *s, unsigned index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct io_uring_sqe *sqe = &s->sqes[index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) unsigned long offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) struct file *f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) long r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if (do_nop) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) sqe->opcode = IORING_OP_NOP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (s->nr_files == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) f = &s->files[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) f = &s->files[s->cur_file];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (f->pending_ios >= file_depth(s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) s->cur_file++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (s->cur_file == s->nr_files)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) s->cur_file = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) f = &s->files[s->cur_file];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) f->pending_ios++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) lrand48_r(&s->rand, &r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) offset = (r % (f->max_blocks - 1)) * BS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (register_files) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) sqe->flags = IOSQE_FIXED_FILE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) sqe->fd = f->fixed_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) sqe->flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) sqe->fd = f->real_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) if (fixedbufs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) sqe->opcode = IORING_OP_READ_FIXED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) sqe->addr = (unsigned long) s->iovecs[index].iov_base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) sqe->len = BS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) sqe->buf_index = index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) sqe->opcode = IORING_OP_READV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) sqe->addr = (unsigned long) &s->iovecs[index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) sqe->len = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) sqe->buf_index = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) sqe->ioprio = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) sqe->off = offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) sqe->user_data = (unsigned long) f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static int prep_more_ios(struct submitter *s, unsigned max_ios)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct io_sq_ring *ring = &s->sq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) unsigned index, tail, next_tail, prepped = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) next_tail = tail = *ring->tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) next_tail++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) read_barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (next_tail == *ring->head)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) index = tail & sq_ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) init_io(s, index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) ring->array[index] = index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) prepped++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) tail = next_tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) } while (prepped < max_ios);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) if (*ring->tail != tail) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) /* order tail store with writes to sqes above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) write_barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) *ring->tail = tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) write_barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) return prepped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static int get_file_size(struct file *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct stat st;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (fstat(f->real_fd, &st) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (S_ISBLK(st.st_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) unsigned long long bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) if (ioctl(f->real_fd, BLKGETSIZE64, &bytes) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) f->max_blocks = bytes / BS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) } else if (S_ISREG(st.st_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) f->max_blocks = st.st_size / BS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) static int reap_events(struct submitter *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) struct io_cq_ring *ring = &s->cq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) struct io_uring_cqe *cqe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) unsigned head, reaped = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) head = *ring->head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) struct file *f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) read_barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) if (head == *ring->tail)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) cqe = &ring->cqes[head & cq_ring_mask];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (!do_nop) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) f = (struct file *) (uintptr_t) cqe->user_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) f->pending_ios--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) if (cqe->res != BS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) printf("io: unexpected ret=%d\n", cqe->res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) if (polled && cqe->res == -EOPNOTSUPP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) printf("Your filesystem doesn't support poll\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) reaped++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) head++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) } while (1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) s->inflight -= reaped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) *ring->head = head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) write_barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) return reaped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) static void *submitter_fn(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) struct submitter *s = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) struct io_sq_ring *ring = &s->sq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) int ret, prepped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) printf("submitter=%d\n", lk_gettid());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) srand48_r(pthread_self(), &s->rand);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) prepped = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) int to_wait, to_submit, this_reap, to_prep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (!prepped && s->inflight < DEPTH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) to_prep = min(DEPTH - s->inflight, BATCH_SUBMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) prepped = prep_more_ios(s, to_prep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) s->inflight += prepped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) submit_more:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) to_submit = prepped;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) submit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (to_submit && (s->inflight + to_submit <= DEPTH))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) to_wait = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) to_wait = min(s->inflight + to_submit, BATCH_COMPLETE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * Only need to call io_uring_enter if we're not using SQ thread
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * poll, or if IORING_SQ_NEED_WAKEUP is set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (!sq_thread_poll || (*ring->flags & IORING_SQ_NEED_WAKEUP)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) unsigned flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) if (to_wait)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) flags = IORING_ENTER_GETEVENTS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) if ((*ring->flags & IORING_SQ_NEED_WAKEUP))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) flags |= IORING_ENTER_SQ_WAKEUP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) ret = io_uring_enter(s->ring_fd, to_submit, to_wait,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) flags, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) s->calls++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) * For non SQ thread poll, we already got the events we needed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * through the io_uring_enter() above. For SQ thread poll, we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * need to loop here until we find enough events.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) this_reap = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) r = reap_events(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) if (r == -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) s->finish = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) } else if (r > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) this_reap += r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) } while (sq_thread_poll && this_reap < to_wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) s->reaps += this_reap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) if (ret >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) to_submit = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (s->inflight)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) goto submit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) } else if (ret < to_submit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) int diff = to_submit - ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) s->done += ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) prepped -= diff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) goto submit_more;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) s->done += ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) prepped = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) } else if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) if (errno == EAGAIN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (s->finish)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) if (this_reap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) goto submit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) to_submit = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) goto submit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) printf("io_submit: %s\n", strerror(errno));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) } while (!s->finish);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) finish = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) static void sig_int(int sig)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) printf("Exiting on signal %d\n", sig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) submitters[0].finish = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) finish = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static void arm_sig_int(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct sigaction act;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) memset(&act, 0, sizeof(act));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) act.sa_handler = sig_int;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) act.sa_flags = SA_RESTART;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) sigaction(SIGINT, &act, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) static int setup_ring(struct submitter *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct io_sq_ring *sring = &s->sq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) struct io_cq_ring *cring = &s->cq_ring;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct io_uring_params p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) int ret, fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) void *ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) memset(&p, 0, sizeof(p));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) if (polled && !do_nop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) p.flags |= IORING_SETUP_IOPOLL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (sq_thread_poll) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) p.flags |= IORING_SETUP_SQPOLL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (sq_thread_cpu != -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) p.flags |= IORING_SETUP_SQ_AFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) p.sq_thread_cpu = sq_thread_cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) fd = io_uring_setup(DEPTH, &p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) perror("io_uring_setup");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) s->ring_fd = fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) if (fixedbufs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) ret = io_uring_register_buffers(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) perror("io_uring_register_buffers");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) if (register_files) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) ret = io_uring_register_files(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) perror("io_uring_register_files");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) ptr = mmap(0, p.sq_off.array + p.sq_entries * sizeof(__u32),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) IORING_OFF_SQ_RING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) printf("sq_ring ptr = 0x%p\n", ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) sring->head = ptr + p.sq_off.head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) sring->tail = ptr + p.sq_off.tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) sring->ring_mask = ptr + p.sq_off.ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) sring->ring_entries = ptr + p.sq_off.ring_entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) sring->flags = ptr + p.sq_off.flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) sring->array = ptr + p.sq_off.array;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) sq_ring_mask = *sring->ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) s->sqes = mmap(0, p.sq_entries * sizeof(struct io_uring_sqe),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) IORING_OFF_SQES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) printf("sqes ptr = 0x%p\n", s->sqes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) ptr = mmap(0, p.cq_off.cqes + p.cq_entries * sizeof(struct io_uring_cqe),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) IORING_OFF_CQ_RING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) printf("cq_ring ptr = 0x%p\n", ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) cring->head = ptr + p.cq_off.head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) cring->tail = ptr + p.cq_off.tail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) cring->ring_mask = ptr + p.cq_off.ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) cring->ring_entries = ptr + p.cq_off.ring_entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) cring->cqes = ptr + p.cq_off.cqes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) cq_ring_mask = *cring->ring_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) static void file_depths(char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) struct submitter *s = &submitters[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) buf[0] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) p = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) for (i = 0; i < s->nr_files; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) struct file *f = &s->files[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) if (i + 1 == s->nr_files)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) p += sprintf(p, "%d", f->pending_ios);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) p += sprintf(p, "%d, ", f->pending_ios);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) int main(int argc, char *argv[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) struct submitter *s = &submitters[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) unsigned long done, calls, reap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) int err, i, flags, fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) char *fdepths;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) void *ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) if (!do_nop && argc < 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) printf("%s: filename\n", argv[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) flags = O_RDONLY | O_NOATIME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) if (!buffered)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) flags |= O_DIRECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) i = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) while (!do_nop && i < argc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) struct file *f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) if (s->nr_files == MAX_FDS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) printf("Max number of files (%d) reached\n", MAX_FDS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) fd = open(argv[i], flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) if (fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) perror("open");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) f = &s->files[s->nr_files];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) f->real_fd = fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (get_file_size(f)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) printf("failed getting size of device/file\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) if (f->max_blocks <= 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) printf("Zero file/device size?\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) f->max_blocks--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) printf("Added file %s\n", argv[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) s->nr_files++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) if (fixedbufs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct rlimit rlim;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) rlim.rlim_cur = RLIM_INFINITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) rlim.rlim_max = RLIM_INFINITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (setrlimit(RLIMIT_MEMLOCK, &rlim) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) perror("setrlimit");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) arm_sig_int();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) for (i = 0; i < DEPTH; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) void *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) if (posix_memalign(&buf, BS, BS)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) printf("failed alloc\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) s->iovecs[i].iov_base = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) s->iovecs[i].iov_len = BS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) err = setup_ring(s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) printf("ring setup failed: %s, %d\n", strerror(errno), err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) printf("polled=%d, fixedbufs=%d, buffered=%d", polled, fixedbufs, buffered);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) printf(" QD=%d, sq_ring=%d, cq_ring=%d\n", DEPTH, *s->sq_ring.ring_entries, *s->cq_ring.ring_entries);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) pthread_create(&s->thread, NULL, submitter_fn, s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) fdepths = malloc(8 * s->nr_files);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) reap = calls = done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) unsigned long this_done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) unsigned long this_reap = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) unsigned long this_call = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) unsigned long rpc = 0, ipc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) sleep(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) this_done += s->done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) this_call += s->calls;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) this_reap += s->reaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) if (this_call - calls) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) rpc = (this_done - done) / (this_call - calls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) ipc = (this_reap - reap) / (this_call - calls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) rpc = ipc = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) file_depths(fdepths);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) printf("IOPS=%lu, IOS/call=%ld/%ld, inflight=%u (%s)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) this_done - done, rpc, ipc, s->inflight,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) fdepths);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) done = this_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) calls = this_call;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) reap = this_reap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) } while (!finish);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) pthread_join(s->thread, &ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) close(s->ring_fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) free(fdepths);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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