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HDWH=7 LDVLD HDH 1 H0H5 vH5 1cN HH /sys/devices/system/cpu/cpu%u/power/energy_perf_bias %s [options] [scope][field value]
scope: --cpu cpu-list [--hwp-use-pkg #] | --pkg pkg-list
field: --all | --epb | --hwp-epp | --hwp-min | --hwp-max | --hwp-desired
other: --hwp-enable | --turbo-enable (0 | 1) | --help | --force
value: ( # | "normal" | "performance" | "balance-performance" | "balance-power"| "power")
Specify only Energy Performance BIAS (legacy usage):
%s: [-c cpu] [-v] (-r | policy-value )
--hwp-epp must be from 0 to 0xff
--turbo-enable: 1 to enable, 0 to disable
EPB not enabled on this platform --hwp-window: 0 for auto; 1 - 1270000000 usec for window duration
Requested cpu%d exceeds max cpu%d --cpu cpu-set: confused by '%s' Requested pkg%d exceeds max pkg%d Requested pkg%d Exceeds max pkg%d x86_energy_perf_policy 17.05.11 (C) Len Brown <len.brown@intel.com> not supported on this virtual machine %s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root pwrite(cpu%d, offset 0x%x, 0x%llx) = %d cpu%d: MSR_PM_ENABLE old: %d new: %d
HWP_CAP: low %d eff %d guar %d high %d
HWP_REQ: min %d max %d des %d epp %d window 0x%x (%d*10^%dus) use_pkg %d
HWP_REQ_PKG: min %d max %d des %d epp %d window 0x%x (%d*10^%dus)
pkg%d: MSR_HWP_INTERRUPT: 0x%08llx (Excursion_Min-%sabled, Guaranteed_Perf_Change-%sabled)
pkg%d: MSR_HWP_STATUS: 0x%08llx (%sExcursion_Min, %sGuaranteed_Perf_Change)
cpu%d: requesting min %d max %d des %d epp %d window 0x%0x use_pkg %d
/sys/devices/system/cpu/cpu%d/cpufreq/scaling_%s_freq /sys/devices/system/cpu/cpu0/cpufreq cpu%d: requested hwp-min %d > hwp_max %d cpu%d: requested hwp-desired %d > hwp_max %d cpu%d: requested hwp-desired %d < requested hwp_min %d cpu%d: requested max %d > capabilities highest %d, use --force? cpu%d: requested max %d < capabilities lowest %d, use --force? cpu%d: requested min %d > capabilities highest %d, use --force? cpu%d: requested min %d < capabilities lowest %d, use --force? cpu%d: requested min %d > requested max %d cpu%d: requested desired %d > requested max %d, use --force? cpu%d: requested desired %d < requested min %d, use --force? cpu%d: requested desired %d < capabilities lowest %d, use --force? cpu%d: requested desired %d > capabilities highest %d, use --force? cpu%d: ENERGY_PERF_BIAS old: %d new: %d
/sys/devices/system/cpu/cpu%d/topology/physical_package_id cpu%d: %d >= MAX_PACKAGES (%d) cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d
cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d
HWP can be enabled using '--hwp-enable'
hwp-desired cannot be greater than hwp_max hwp-desired cannot be less than hwp_min /sbin/modprobe msr > /dev/null 2>&1 no /dev/cpu/0/msr, Try "# modprobe msr" %d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)
CPUID(1): %s %s %s %s %s %s %s %s
--hwp-use-pkg is not available on this hardware CPUID(6): %sTURBO, %sHWP, %sHWPnotify, %sHWPwindow, %sHWPepp, %sHWPpkg, %sEPB
%d write failed
--hwp-window usec
%d = ratio_to_msr_perf(%d)
%d = msr_perf_ratio(%d) {%f}
--epb must be from 0 to 15 %d 10^%d
%d*10^%d: 0x%x
default normal balance-power balance-performance no digits in "%s"
%d (0x%x) must be < 256 %d (0x%x) must be >= 0 no CPUs requested Requested cpu% is not present cpu_selected_set even +a:c:dD:E:e:f:m:M:rt:u:vw: stray parameter '%s'
%s: open failed /proc/cpuinfo buffer malloc fail Reading /proc/cpuinfo failed flags hypervisor /dev/cpu/%d/msr %s offset 0x%llx read failed get_msr(cpu%d, 0x%X, 0x%llX)
put_msr(cpu%d, 0x%X, 0x%llX)
cpu%d: %s pkg%d: cpu%d: EPB %u
EN Dis No- fprintf echo %d > %s
old: new: cpu%d: turbo ENABLE
cpu%d: turbo DISABLE
%s: failed to parse %s: failed to parse format CPU_ALLOC hwp-min %d > hwp_max %d
No valid cpus found Processor not supported
ACPI-TM TSC TM2 EIST MONITOR SSE3 CPUID(0): %.4s%.4s%.4s CPUID: no MSR all cpu debug hwp-desired epb force hwp-enable help hwp-epp hwp-min hwp-max read turbo-enable hwp-use-pkg version hwp-window /proc/stat X @ ( @ o@ ?; ; خ h@ X ضl ȷ ظ H0 P (p Ȼ 8 X( < T x ( < x ( h 0 | h P x( H H$ 8`
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