From: bugzilla-daemon@bugzilla.kernel.org
To: cpufreq@vger.kernel.org
Subject: [Bug 72211] New: intel_pstate Haswell CPU is not entering hardware package idle state
Date: Sun, 16 Mar 2014 16:30:22 +0000 [thread overview]
Message-ID: <bug-72211-12968@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=72211
Bug ID: 72211
Summary: intel_pstate Haswell CPU is not entering hardware
package idle state
Product: Power Management
Version: 2.5
Kernel Version: 3.13.6
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
Assignee: cpufreq@vger.kernel.org
Reporter: opensource@macht-blau.org
Regression: No
Created attachment 129641
--> https://bugzilla.kernel.org/attachment.cgi?id=129641&action=edit
Kernel Config (Archlinux)
Intel Pentium G3220 is not reaching package idle states above PC3.
CPU is in C6 for over 99% (no C7 on pentium). Package idle states start with
97% in PC2. After five minute idle they drop to 97% PC3. But they never enter
PC6.
Kernel (archlinux),
Linux eagle 3.13.6-1-ARCH #1 SMP PREEMPT Fri Mar 7 22:47:48 CET 2014 x86_64
GNU/Linux
config is attached. I tried 3.14-rc6 with similiar results.
turbostat output is below.
[root@eagle ~]# turbostat -v
turbostat v3.5 April 26, 2013 - Len Brown <lenb@kernel.org>
CPUID(0): GenuineIntel 13 CPUID levels; family:model:stepping 0x6:3c:3 (6:60:3)
CPUID(6): APERF, DTS, PTM, EPB
30 * 100 = 3000 MHz TSC frequency
cpu0: MSR_IA32_POWER_CTL: 0x0004005d (C1E auto-promotion: DISabled)
cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e000403 (UNdemote-C3, UNdemote-C1,
demote-C3, demote-C1, UNlocked: pkg-cstate-limit=3: pc6)
cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x1e1e1e1e
30 * 100 = 3000 MHz max turbo 4 active cores
30 * 100 = 3000 MHz max turbo 3 active cores
30 * 100 = 3000 MHz max turbo 2 active cores
30 * 100 = 3000 MHz max turbo 1 active cores
cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x00000006 (balanced)
cpu0: MSR_RAPL_POWER_UNIT: 0x000a0e03 (0.125000 Watts, 0.000061 Joules,
0.000977 sec.)
cpu0: MSR_PKG_POWER_INFO: 0x000001a8 (53 W TDP, RAPL 0 - 0 W, 0.000000 sec.)
cpu0: MSR_PKG_POWER_LIMIT: 0x428212001a81a8 (UNlocked)
cpu0: PKG Limit #1: ENabled (53.000000 Watts, 8.000000 sec, clamp DISabled)
cpu0: PKG Limit #2: ENabled (66.250000 Watts, 0.002441* sec, clamp DISabled)
cpu0: MSR_PP0_POLICY: 0
cpu0: MSR_PP0_POWER_LIMIT: 0x00000000 (UNlocked)
cpu0: Cores Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled)
cpu0: MSR_PP1_POLICY: 0
cpu0: MSR_PP1_POWER_LIMIT: 0x00000000 (UNlocked)
cpu0: GFX Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled)
cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00641400 (100 C)
cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x88490000 (27 C)
cpu0: MSR_IA32_THERM_STATUS: 0x88490000 (27 C +/- 1)
cpu1: MSR_IA32_THERM_STATUS: 0x88490000 (27 C +/- 1)
cor CPU %c0 GHz TSC SMI %c1 %c3 %c6 %c7
0.13 2.99 2.99 0 0.02 0.00 99.85 0.00
0 0 0.22 2.99 2.99 0 0.02 0.00 99.77 0.00
1 1 0.03 2.99 2.99 0 0.03 0.00 99.94 0.00
CTMP PTMP %pc2 %pc3 %pc6 %pc7 Pkg_W Cor_W GFX_W
26 28 2.11 97.50 0.00 0.00 10.30 0.03 0.00
26 28 2.11 97.50 0.00 0.00 10.30 0.03 0.00
25
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next reply other threads:[~2014-03-16 16:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-16 16:30 bugzilla-daemon [this message]
2014-03-20 12:22 ` [Bug 72211] intel_pstate Haswell CPU is not entering hardware package idle state bugzilla-daemon
2014-03-24 21:14 ` bugzilla-daemon
2014-04-18 2:27 ` bugzilla-daemon
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