^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) .TH TURBOSTAT 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) .SH NAME
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) turbostat \- Report processor frequency and idle statistics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) .SH SYNOPSIS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) .ft B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) .B turbostat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) .RB [ Options ]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) .RB command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) .br
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) .B turbostat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) .RB [ Options ]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) .RB [ "\--interval seconds" ]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) .SH DESCRIPTION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) \fBturbostat \fP reports processor topology, frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) idle power-state statistics, temperature and power on X86 processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) There are two ways to invoke turbostat.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) The first method is to supply a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) \fBcommand\fP, which is forked and statistics are printed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) in one-shot upon its completion.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) The second method is to omit the command,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) and turbostat displays statistics every 5 seconds interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) The 5-second interval can be changed using the --interval option.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) Some information is not available on older processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .SS Options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) Options can be specified with a single or double '-', and only as much of the option
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) name as necessary to disambiguate it from others is necessary. Note that options are case-sensitive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) \fB--add attributes\fP add column with counter having specified 'attributes'. The 'location' attribute is required, all others are optional.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) location: {\fBmsrDDD\fP | \fBmsr0xXXX\fP | \fB/sys/path...\fP}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) msrDDD is a decimal offset, eg. msr16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) msr0xXXX is a hex offset, eg. msr0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /sys/path... is an absolute path to a sysfs attribute
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) scope: {\fBcpu\fP | \fBcore\fP | \fBpackage\fP}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) sample and print the counter for every cpu, core, or package.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) default: cpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) size: {\fBu32\fP | \fBu64\fP }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) MSRs are read as 64-bits, u32 truncates the displayed value to 32-bits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) default: u64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) format: {\fBraw\fP | \fBdelta\fP | \fBpercent\fP}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 'raw' shows the MSR contents in hex.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 'delta' shows the difference in values during the measurement interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 'percent' shows the delta as a percentage of the cycles elapsed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) default: delta
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) name: "name_string"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) Any string that does not match a key-word above is used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) as the column header.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) \fB--cpu cpu-set\fP limit output to system summary plus the specified cpu-set. If cpu-set is the string "core", then the system summary plus the first CPU in each core are printed -- eg. subsequent HT siblings are not printed. Or if cpu-set is the string "package", then the system summary plus the first CPU in each package is printed. Otherwise, the system summary plus the specified set of CPUs are printed. The cpu-set is ordered from low to high, comma delimited with ".." and "-" permitted to denote a range. eg. 1,2,8,14..17,21-44
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) \fB--hide column\fP do not show the specified built-in columns. May be invoked multiple times, or with a comma-separated list of column names. Use "--hide sysfs" to hide the sysfs statistics columns as a group.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) \fB--enable column\fP show the specified built-in columns, which are otherwise disabled, by default. Currently the only built-in counters disabled by default are "usec", "Time_Of_Day_Seconds", "APIC" and "X2APIC".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) The column name "all" can be used to enable all disabled-by-default built-in counters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) \fB--show column\fP show only the specified built-in columns. May be invoked multiple times, or with a comma-separated list of column names. Use "--show sysfs" to show the sysfs statistics columns as a group.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) \fB--Dump\fP displays the raw counter values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) \fB--quiet\fP Do not decode and print the system configuration header information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) \fB--interval seconds\fP overrides the default 5.0 second measurement interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) \fB--num_iterations num\fP number of the measurement iterations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) \fB--out output_file\fP turbostat output is written to the specified output_file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) The file is truncated if it already exists, and it is created if it does not exist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) \fB--help\fP displays usage for the most common parameters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) \fB--Joules\fP displays energy in Joules, rather than dividing Joules by time to print power in Watts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) \fB--list\fP display column header names available for use by --show and --hide, then exit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) \fB--Summary\fP limits output to a 1-line System Summary for each interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) \fB--TCC temperature\fP sets the Thermal Control Circuit temperature for systems which do not export that value. This is used for making sense of the Digital Thermal Sensor outputs, as they return degrees Celsius below the TCC activation temperature.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) \fB--version\fP displays the version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) The \fBcommand\fP parameter forks \fBcommand\fP, and upon its exit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) displays the statistics gathered since it was forked.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .SH ROW DESCRIPTIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) The system configuration dump (if --quiet is not used) is followed by statistics. The first row of the statistics labels the content of each column (below). The second row of statistics is the system summary line. The system summary line has a '-' in the columns for the Package, Core, and CPU. The contents of the system summary line depends on the type of column. Columns that count items (eg. IRQ) show the sum across all CPUs in the system. Columns that show a percentage show the average across all CPUs in the system. Columns that dump raw MSR values simply show 0 in the summary. After the system summary row, each row describes a specific Package/Core/CPU. Note that if the --cpu parameter is used to limit which specific CPUs are displayed, turbostat will still collect statistics for all CPUs in the system and will still show the system summary for all CPUs in the system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .SH COLUMN DESCRIPTIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) \fBusec\fP For each CPU, the number of microseconds elapsed during counter collection, including thread migration -- if any. This counter is disabled by default, and is enabled with "--enable usec", or --debug. On the summary row, usec refers to the total elapsed time to collect the counters on all cpus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) \fBTime_Of_Day_Seconds\fP For each CPU, the gettimeofday(2) value (seconds.subsec since Epoch) when the counters ending the measurement interval were collected. This column is disabled by default, and can be enabled with "--enable Time_Of_Day_Seconds" or "--debug". On the summary row, Time_Of_Day_Seconds refers to the timestamp following collection of counters on the last CPU.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) \fBCore\fP processor core number. Note that multiple CPUs per core indicate support for Intel(R) Hyper-Threading Technology (HT).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) \fBCPU\fP Linux CPU (logical processor) number. Yes, it is okay that on many systems the CPUs are not listed in numerical order -- for efficiency reasons, turbostat runs in topology order, so HT siblings appear together.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) \fBPackage\fP processor package number -- not present on systems with a single processor package.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) \fBAvg_MHz\fP number of cycles executed divided by time elapsed. Note that this includes idle-time when 0 instructions are executed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) \fBBusy%\fP percent of the measurement interval that the CPU executes instructions, aka. % of time in "C0" state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) \fBBzy_MHz\fP average clock rate while the CPU was not idle (ie. in "c0" state).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) \fBTSC_MHz\fP average MHz that the TSC ran during the entire interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) \fBIRQ\fP The number of interrupts serviced by that CPU during the measurement interval. The system total line is the sum of interrupts serviced across all CPUs. turbostat parses /proc/interrupts to generate this summary.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) \fBSMI\fP The number of System Management Interrupts serviced CPU during the measurement interval. While this counter is actually per-CPU, SMI are triggered on all processors, so the number should be the same for all CPUs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) \fBC1, C2, C3...\fP The number times Linux requested the C1, C2, C3 idle state during the measurement interval. The system summary line shows the sum for all CPUs. These are C-state names as exported in /sys/devices/system/cpu/cpu*/cpuidle/state*/name. While their names are generic, their attributes are processor specific. They the system description section of output shows what MWAIT sub-states they are mapped to on each system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) \fBC1%, C2%, C3%\fP The residency percentage that Linux requested C1, C2, C3.... The system summary is the average of all CPUs in the system. Note that these are software, reflecting what was requested. The hardware counters reflect what was actually achieved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) \fBCPU%c1, CPU%c3, CPU%c6, CPU%c7\fP show the percentage residency in hardware core idle states. These numbers are from hardware residency counters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) \fBCoreTmp\fP Degrees Celsius reported by the per-core Digital Thermal Sensor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) \fBPkgTmp\fP Degrees Celsius reported by the per-package Package Thermal Monitor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) \fBGFX%rc6\fP The percentage of time the GPU is in the "render C6" state, rc6, during the measurement interval. From /sys/class/drm/card0/power/rc6_residency_ms.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) \fBGFXMHz\fP Instantaneous snapshot of what sysfs presents at the end of the measurement interval. From /sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) \fBPkg%pc2, Pkg%pc3, Pkg%pc6, Pkg%pc7\fP percentage residency in hardware package idle states. These numbers are from hardware residency counters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) \fBPkgWatt\fP Watts consumed by the whole package.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) \fBCorWatt\fP Watts consumed by the core part of the package.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) \fBGFXWatt\fP Watts consumed by the Graphics part of the package -- available only on client processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) \fBRAMWatt\fP Watts consumed by the DRAM DIMMS -- available only on server processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) \fBPKG_%\fP percent of the interval that RAPL throttling was active on the Package. Note that the system summary is the sum of the package throttling time, and thus may be higher than 100% on a multi-package system. Note that the meaning of this field is model specific. For example, some hardware increments this counter when RAPL responds to thermal limits, but does not increment this counter when RAPL responds to power limits. Comparing PkgWatt and PkgTmp to system limits is necessary.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) \fBRAM_%\fP percent of the interval that RAPL throttling was active on DRAM.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .SH TOO MUCH INFORMATION EXAMPLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) By default, turbostat dumps all possible information -- a system configuration header, followed by columns for all counters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) This is ideal for remote debugging, use the "--out" option to save everything to a text file, and get that file to the expert helping you debug.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) When you are not interested in all that information, and there are several ways to see only what you want. First the "--quiet" option will skip the configuration information, and turbostat will show only the counter columns. Second, you can reduce the columns with the "--hide" and "--show" options. If you use the "--show" option, then turbostat will show only the columns you list. If you use the "--hide" option, turbostat will show all columns, except the ones you list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) To find out what columns are available for --show and --hide, the "--list" option is available. For convenience, the special strings "sysfs" can be used to refer to all of the sysfs C-state counters at once:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) sudo ./turbostat --show sysfs --quiet sleep 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 10.003837 sec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) C1 C1E C3 C6 C7s C1% C1E% C3% C6% C7s%
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 4 21 2 2 459 0.14 0.82 0.00 0.00 98.93
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 1 17 2 2 130 0.00 0.02 0.00 0.00 99.80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 0 0 0 0 31 0.00 0.00 0.00 0.00 99.95
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 2 1 0 0 52 1.14 6.49 0.00 0.00 92.21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 1 2 0 0 52 0.00 0.08 0.00 0.00 99.86
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 0 0 0 0 71 0.00 0.00 0.00 0.00 99.89
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 0 0 0 0 25 0.00 0.00 0.00 0.00 99.96
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 0 0 0 0 74 0.00 0.00 0.00 0.00 99.94
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 0 1 0 0 24 0.00 0.00 0.00 0.00 99.84
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .SH ONE SHOT COMMAND EXAMPLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) If turbostat is invoked with a command, it will fork that command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) and output the statistics gathered after the command exits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) In this case, turbostat output goes to stderr, by default.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) Output can instead be saved to a file using the --out option.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) In this example, the "sleep 10" command is forked, and turbostat waits for it to complete before saving all statistics into "ts.out". Note that "sleep 10" is not part of turbostat, but is simply an example of a command that turbostat can fork. The "ts.out" file is what you want to edit in a very wide window, paste into a spreadsheet, or attach to a bugzilla entry.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) [root@hsw]# ./turbostat -o ts.out sleep 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) [root@hsw]#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .SH PERIODIC INTERVAL EXAMPLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) Without a command to fork, turbostat displays statistics ever 5 seconds.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) Periodic output goes to stdout, by default, unless --out is used to specify an output file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) The 5-second interval can be changed with the "-i sec" option.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) sudo ./turbostat --quiet --hide sysfs,IRQ,SMI,CoreTmp,PkgTmp,GFX%rc6,GFXMHz,PkgWatt,CorWatt,GFXWatt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) Core CPU Avg_MHz Busy% Bzy_MHz TSC_MHz CPU%c1 CPU%c3 CPU%c6 CPU%c7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) - - 488 12.52 3900 3498 12.50 0.00 0.00 74.98
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 0 0 5 0.13 3900 3498 99.87 0.00 0.00 0.00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 0 4 3897 99.99 3900 3498 0.01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 1 1 0 0.00 3856 3498 0.01 0.00 0.00 99.98
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 1 5 0 0.00 3861 3498 0.01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 2 2 1 0.02 3889 3498 0.03 0.00 0.00 99.95
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 2 6 0 0.00 3863 3498 0.05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 3 3 0 0.01 3869 3498 0.02 0.00 0.00 99.97
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 3 7 0 0.00 3878 3498 0.03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) Core CPU Avg_MHz Busy% Bzy_MHz TSC_MHz CPU%c1 CPU%c3 CPU%c6 CPU%c7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) - - 491 12.59 3900 3498 12.42 0.00 0.00 74.99
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 0 0 27 0.69 3900 3498 99.31 0.00 0.00 0.00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 0 4 3898 99.99 3900 3498 0.01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 1 1 0 0.00 3883 3498 0.01 0.00 0.00 99.99
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 1 5 0 0.00 3898 3498 0.01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 2 2 0 0.01 3889 3498 0.02 0.00 0.00 99.98
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 2 6 0 0.00 3889 3498 0.02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 3 3 0 0.00 3856 3498 0.01 0.00 0.00 99.99
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 3 7 0 0.00 3897 3498 0.01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) This example also shows the use of the --hide option to skip columns that are not wanted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) Note that cpu4 in this example is 99.99% busy, while the other CPUs are all under 1% busy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) Notice that cpu4's HT sibling is cpu0, which is under 1% busy, but can get into CPU%c1 only,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) because its cpu4's activity on shared hardware keeps it from entering a deeper C-state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .SH SYSTEM CONFIGURATION INFORMATION EXAMPLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) By default, turbostat always dumps system configuration information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) before taking measurements. In the example above, "--quiet" is used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) to suppress that output. Here is an example of the configuration information:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) turbostat version 2017.02.15 - Len Brown <lenb@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) CPUID(0): GenuineIntel 13 CPUID levels; family:model:stepping 0x6:3c:3 (6:60:3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) CPUID(1): SSE3 MONITOR - EIST TM2 TSC MSR ACPI-TM TM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) CPUID(6): APERF, TURBO, DTS, PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, EPB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) cpu4: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST No-MWAIT PREFETCH TURBO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) CPUID(7): No-SGX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) cpu4: MSR_MISC_PWR_MGMT: 0x00400000 (ENable-EIST_Coordination DISable-EPB DISable-OOB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) RAPL: 3121 sec. Joule Counter Range, at 84 Watts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) cpu4: MSR_PLATFORM_INFO: 0x80838f3012300
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 8 * 100.0 = 800.0 MHz max efficiency frequency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 35 * 100.0 = 3500.0 MHz base frequency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) cpu4: MSR_IA32_POWER_CTL: 0x0004005d (C1E auto-promotion: DISabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) cpu4: MSR_TURBO_RATIO_LIMIT: 0x25262727
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 37 * 100.0 = 3700.0 MHz max turbo 4 active cores
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 38 * 100.0 = 3800.0 MHz max turbo 3 active cores
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 39 * 100.0 = 3900.0 MHz max turbo 2 active cores
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 39 * 100.0 = 3900.0 MHz max turbo 1 active cores
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) cpu4: MSR_CONFIG_TDP_NOMINAL: 0x00000023 (base_ratio=35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) cpu4: MSR_CONFIG_TDP_LEVEL_1: 0x00000000 ()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) cpu4: MSR_CONFIG_TDP_LEVEL_2: 0x00000000 ()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) cpu4: MSR_CONFIG_TDP_CONTROL: 0x80000000 ( lock=1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) cpu4: MSR_TURBO_ACTIVATION_RATIO: 0x00000000 (MAX_NON_TURBO_RATIO=0 lock=0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) cpu4: MSR_PKG_CST_CONFIG_CONTROL: 0x1e000400 (UNdemote-C3, UNdemote-C1, demote-C3, demote-C1, UNlocked: pkg-cstate-limit=0: pc0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) cpu4: POLL: CPUIDLE CORE POLL IDLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) cpu4: C1: MWAIT 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) cpu4: C1E: MWAIT 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) cpu4: C3: MWAIT 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) cpu4: C6: MWAIT 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) cpu4: C7s: MWAIT 0x32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) cpu4: MSR_MISC_FEATURE_CONTROL: 0x00000000 (L2-Prefetch L2-Prefetch-pair L1-Prefetch L1-IP-Prefetch)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x00000006 (balanced)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) cpu0: MSR_CORE_PERF_LIMIT_REASONS, 0x31200000 (Active: ) (Logged: Transitions, MultiCoreTurbo, Amps, Auto-HWP, )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) cpu0: MSR_GFX_PERF_LIMIT_REASONS, 0x00000000 (Active: ) (Logged: )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) cpu0: MSR_RING_PERF_LIMIT_REASONS, 0x0d000000 (Active: ) (Logged: Amps, PkgPwrL1, PkgPwrL2, )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) cpu0: MSR_RAPL_POWER_UNIT: 0x000a0e03 (0.125000 Watts, 0.000061 Joules, 0.000977 sec.)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) cpu0: MSR_PKG_POWER_INFO: 0x000002a0 (84 W TDP, RAPL 0 - 0 W, 0.000000 sec.)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) cpu0: MSR_PKG_POWER_LIMIT: 0x428348001a82a0 (UNlocked)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) cpu0: PKG Limit #1: ENabled (84.000000 Watts, 8.000000 sec, clamp DISabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) cpu0: PKG Limit #2: ENabled (105.000000 Watts, 0.002441* sec, clamp DISabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) cpu0: MSR_PP0_POLICY: 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) cpu0: MSR_PP0_POWER_LIMIT: 0x00000000 (UNlocked)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) cpu0: Cores Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) cpu0: MSR_PP1_POLICY: 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) cpu0: MSR_PP1_POWER_LIMIT: 0x00000000 (UNlocked)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) cpu0: GFX Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00641400 (100 C)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x884c0800 (24 C)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) cpu0: MSR_IA32_THERM_STATUS: 0x884c0000 (24 C +/- 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) cpu1: MSR_IA32_THERM_STATUS: 0x88510000 (19 C +/- 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) cpu2: MSR_IA32_THERM_STATUS: 0x884e0000 (22 C +/- 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) cpu3: MSR_IA32_THERM_STATUS: 0x88510000 (19 C +/- 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) cpu4: MSR_PKGC3_IRTL: 0x00008842 (valid, 67584 ns)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) cpu4: MSR_PKGC6_IRTL: 0x00008873 (valid, 117760 ns)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) cpu4: MSR_PKGC7_IRTL: 0x00008891 (valid, 148480 ns)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) The \fBmax efficiency\fP frequency, a.k.a. Low Frequency Mode, is the frequency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) available at the minimum package voltage. The \fBTSC frequency\fP is the base
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) frequency of the processor -- this should match the brand string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) in /proc/cpuinfo. This base frequency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) should be sustainable on all CPUs indefinitely, given nominal power and cooling.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) The remaining rows show what maximum turbo frequency is possible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) depending on the number of idle cores. Note that not all information is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) available on all processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) .SH ADD COUNTER EXAMPLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) Here we limit turbostat to showing just the CPU number for cpu0 - cpu3.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) We add a counter showing the 32-bit raw value of MSR 0x199 (MSR_IA32_PERF_CTL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) labeling it with the column header, "PRF_CTRL", and display it only once,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) afte the conclusion of a 0.1 second sleep.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) sudo ./turbostat --quiet --cpu 0-3 --show CPU --add msr0x199,u32,raw,PRF_CTRL sleep .1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 0.101604 sec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) CPU PRF_CTRL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) - 0x00000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 0 0x00000c00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 1 0x00000800
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 2 0x00000a00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 3 0x00000800
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) .SH INPUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) For interval-mode, turbostat will immediately end the current interval
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) when it sees a newline on standard input.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) turbostat will then start the next interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) Control-C will be send a SIGINT to turbostat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) which will immediately abort the program with no further processing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) .SH SIGNALS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) SIGINT will interrupt interval-mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) The end-of-interval data will be collected and displayed before turbostat exits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) SIGUSR1 will end current interval,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) end-of-interval data will be collected and displayed before turbostat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) starts a new interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) .SH NOTES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) .B "turbostat "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) must be run as root.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) Alternatively, non-root users can be enabled to run turbostat this way:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) # setcap cap_sys_rawio=ep ./turbostat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) # chmod +r /dev/cpu/*/msr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) .B "turbostat "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) reads hardware counters, but doesn't write them.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) So it will not interfere with the OS or other programs, including
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) multiple invocations of itself.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) \fBturbostat \fP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) may work poorly on Linux-2.6.20 through 2.6.29,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) as \fBacpi-cpufreq \fPperiodically cleared the APERF and MPERF MSRs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) in those kernels.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) AVG_MHz = APERF_delta/measurement_interval. This is the actual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) number of elapsed cycles divided by the entire sample interval --
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) including idle time. Note that this calculation is resilient
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) to systems lacking a non-stop TSC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) TSC_MHz = TSC_delta/measurement_interval.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) On a system with an invariant TSC, this value will be constant
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) and will closely match the base frequency value shown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) in the brand string in /proc/cpuinfo. On a system where
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) the TSC stops in idle, TSC_MHz will drop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) below the processor's base frequency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) Busy% = MPERF_delta/TSC_delta
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) Bzy_MHz = TSC_delta/APERF_delta/MPERF_delta/measurement_interval
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) Note that these calculations depend on TSC_delta, so they
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) are not reliable during intervals when TSC_MHz is not running at the base frequency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) Turbostat data collection is not atomic.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) Extremely short measurement intervals (much less than 1 second),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) or system activity that prevents turbostat from being able
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) to run on all CPUS to quickly collect data, will result in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) inconsistent results.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) The APERF, MPERF MSRs are defined to count non-halted cycles.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) Although it is not guaranteed by the architecture, turbostat assumes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) that they count at TSC rate, which is true on all processors tested to date.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) .SH REFERENCES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) Volume 3B: System Programming Guide"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) https://www.intel.com/products/processor/manuals/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) .SH FILES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) .ta
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /dev/cpu/*/msr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) .fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) .SH "SEE ALSO"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) msr(4), vmstat(8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) .PP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) .SH AUTHOR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) .nf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) Written by Len Brown <len.brown@intel.com>
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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