Before and after cx_lowest=c8 on an E5-2620v2 before: # pcm.x 1 Intel(r) Performance Counter Monitor V2.6 (2013-11-04 13:43:31 +0100 ID=db05e43) Copyright (c) 2009-2013 Intel Corporation Number of physical cores: 12 Number of logical cores: 24 Threads (logical cores) per physical core: 2 Num sockets: 2 Core PMU (perfmon) version: 3 Number of core PMU generic (programmable) counters: 4 Width of generic (programmable) counters: 48 bits Number of core PMU fixed counters: 3 Width of fixed counters: 48 bits Nominal core frequency: 2100000000 Hz Package thermal spec power: 80 Watt; Package minimum power: 51 Watt; Package maximum power: 110 Watt; ERROR: QPI LL monitoring device (0:127:8:2) is missing. The QPI statistics will be incomplete or missing. ERROR: QPI LL monitoring device (0:127:9:2) is missing. The QPI statistics will be incomplete or missing. Socket 0: 1 memory controllers detected with total number of 4 channels. 0 QPI ports detected. ERROR: QPI LL monitoring device (0:255:8:2) is missing. The QPI statistics will be incomplete or missing. ERROR: QPI LL monitoring device (0:255:9:2) is missing. The QPI statistics will be incomplete or missing. Socket 1: 1 memory controllers detected with total number of 4 channels. 0 QPI ports detected. Max QPI link speed: 14.4 GBytes/second (7.2 GT/second) Detected Intel(R) Xeon(R) CPU E5-2620 v2 _at_ 2.10GHz "Intel(r) microarchitecture codename Ivy Bridge-EP/EN/EX/Ivytown" EXEC : instructions per nominal CPU cycle IPC : instructions per CPU cycle FREQ : relation to nominal CPU frequency='unhalted clock ticks'/'invariant timer ticks' (includes Intel Turbo Boost) AFREQ : relation to nominal CPU frequency while in active state (not in power-saving C state)='unhalted clock ticks'/'invariant timer ticks while in C0-state' (includes Intel Turbo Boost) L3MISS: L3 cache misses L2MISS: L2 cache misses (including other core's L2 cache *hits*) L3HIT : L3 cache hit ratio (0.00-1.00) L2HIT : L2 cache hit ratio (0.00-1.00) L3CLK : ratio of CPU cycles lost due to L3 cache misses (0.00-1.00), in some cases could be >1.0 due to a higher memory latency L2CLK : ratio of CPU cycles lost due to missing L2 cache but still hitting L3 cache (0.00-1.00) READ : bytes read from memory controller (in GBytes) WRITE : bytes written to memory controller (in GBytes) TEMP : Temperature reading in 1 degree Celsius relative to the TjMax temperature (thermal headroom): 0 corresponds to the max temperature Core (SKT) | EXEC | IPC | FREQ | AFREQ | L3MISS | L2MISS | L3HIT | L2HIT | L3CLK | L2CLK | READ | WRITE | TEMP 0 0 0.06 1.02 0.06 0.99 2451 K 3421 K 0.28 0.85 0.36 0.03 N/A N/A 56 1 0 0.03 1.07 0.03 0.99 649 K 1331 K 0.51 0.93 0.18 0.04 N/A N/A 56 2 0 0.06 1.27 0.05 0.99 1020 K 1738 K 0.41 0.92 0.19 0.03 N/A N/A 47 3 0 0.05 1.20 0.04 0.98 1057 K 2256 K 0.53 0.87 0.20 0.05 N/A N/A 47 4 0 0.06 1.28 0.05 0.99 1115 K 1942 K 0.43 0.91 0.20 0.03 N/A N/A 56 5 0 0.08 1.31 0.06 0.99 1046 K 1932 K 0.46 0.94 0.15 0.03 N/A N/A 56 6 0 0.06 1.27 0.05 0.99 1167 K 1866 K 0.37 0.92 0.20 0.02 N/A N/A 53 7 0 0.12 1.45 0.09 0.99 1256 K 2263 K 0.45 0.95 0.12 0.02 N/A N/A 53 8 0 0.05 1.05 0.05 0.98 2372 K 3072 K 0.23 0.87 0.40 0.02 N/A N/A 53 9 0 0.03 1.19 0.03 0.94 968 K 1521 K 0.36 0.48 0.29 0.04 N/A N/A 53 10 0 0.09 1.27 0.07 0.99 1773 K 3184 K 0.44 0.89 0.21 0.03 N/A N/A 52 11 0 0.14 1.33 0.10 0.99 1745 K 2808 K 0.38 0.96 0.14 0.02 N/A N/A 52 12 1 0.04 1.21 0.03 0.98 1116 K 1867 K 0.40 0.69 0.28 0.04 N/A N/A 49 13 1 0.09 1.24 0.07 0.99 2248 K 3901 K 0.42 0.81 0.27 0.04 N/A N/A 49 14 1 0.10 1.35 0.07 0.98 1668 K 2603 K 0.36 0.92 0.20 0.02 N/A N/A 49 15 1 0.05 1.26 0.04 0.99 1435 K 2286 K 0.37 0.68 0.33 0.04 N/A N/A 49 16 1 0.11 1.29 0.08 0.99 1887 K 3232 K 0.42 0.92 0.19 0.03 N/A N/A 44 17 1 0.06 1.28 0.05 0.99 966 K 1626 K 0.41 0.93 0.18 0.02 N/A N/A 44 18 1 0.07 1.30 0.05 0.99 1040 K 1870 K 0.44 0.92 0.18 0.03 N/A N/A 47 19 1 0.12 1.30 0.09 0.99 1973 K 3133 K 0.37 0.93 0.18 0.02 N/A N/A 47 20 1 0.05 1.33 0.04 0.99 898 K 1531 K 0.41 0.91 0.19 0.03 N/A N/A 48 21 1 0.06 1.18 0.05 0.97 1140 K 2881 K 0.60 0.85 0.18 0.06 N/A N/A 48 22 1 0.20 1.34 0.15 1.00 3082 K 4634 K 0.33 0.94 0.17 0.02 N/A N/A 47 23 1 0.10 1.32 0.08 0.99 1732 K 2885 K 0.40 0.93 0.19 0.02 N/A N/A 47 ------------------------------------------------------------------------------------------------------------------- SKT 0 0.07 1.25 0.06 0.98 16 M 27 M 0.39 0.92 0.21 0.03 4.56 2.91 46 SKT 1 0.09 1.30 0.07 0.99 19 M 32 M 0.41 0.91 0.20 0.03 3.44 2.56 44 ------------------------------------------------------------------------------------------------------------------- TOTAL * 0.08 1.27 0.06 0.99 35 M 59 M 0.40 0.91 0.21 0.03 8.00 5.46 N/A Instructions retired: 39 G ; Active cycles: 31 G ; Time (TSC): 21 Gticks ; C0 (active,non-halted) core residency: 6.28 % C1 core residency: 93.72 %; C3 core residency: 0.00 %; C6 core residency: 0.00 %; C7 core residency: 0.00 %; C2 package residency: 0.00 %; C3 package residency: 0.00 %; C6 package residency: 0.00 %; C7 package residency: 0.00 %; PHYSICAL CORE IPC : 2.55 => corresponds to 63.74 % utilization for cores in active state Instructions per nominal CPU cycle: 0.16 => corresponds to 3.95 % core utilization over time interval Intel(r) QPI data traffic estimation in bytes (data traffic coming to CPU/socket through QPI links): | ---------------------------------------------------------------------------------------------- SKT 0 | SKT 1 | ---------------------------------------------------------------------------------------------- Total QPI incoming data traffic: 0 QPI data traffic/Memory controller traffic: 0.00 Intel(r) QPI traffic estimation in bytes (data and non-data traffic outgoing from CPU/socket through QPI links): | ---------------------------------------------------------------------------------------------- SKT 0 | SKT 1 | ---------------------------------------------------------------------------------------------- Total QPI outgoing data and non-data traffic: 0 ---------------------------------------------------------------------------------------------- SKT 0 package consumed 252.82 Joules SKT 1 package consumed 236.10 Joules ---------------------------------------------------------------------------------------------- TOTAL: 488.93 Joules ---------------------------------------------------------------------------------------------- SKT 0 DIMMs consumed 19.62 Joules SKT 1 DIMMs consumed 12.17 Joules ---------------------------------------------------------------------------------------------- TOTAL: 31.79 Joules and After: # pcm.x Intel(r) Performance Counter Monitor V2.6 (2013-11-04 13:43:31 +0100 ID=db05e43) Copyright (c) 2009-2013 Intel Corporation Number of physical cores: 12 Number of logical cores: 24 Threads (logical cores) per physical core: 2 Num sockets: 2 Core PMU (perfmon) version: 3 Number of core PMU generic (programmable) counters: 4 Width of generic (programmable) counters: 48 bits Number of core PMU fixed counters: 3 Width of fixed counters: 48 bits Nominal core frequency: 2100000000 Hz Package thermal spec power: 80 Watt; Package minimum power: 51 Watt; Package maximum power: 110 Watt; ERROR: QPI LL monitoring device (0:127:8:2) is missing. The QPI statistics will be incomplete or missing. ERROR: QPI LL monitoring device (0:127:9:2) is missing. The QPI statistics will be incomplete or missing. Socket 0: 1 memory controllers detected with total number of 4 channels. 0 QPI ports detected. ERROR: QPI LL monitoring device (0:255:8:2) is missing. The QPI statistics will be incomplete or missing. ERROR: QPI LL monitoring device (0:255:9:2) is missing. The QPI statistics will be incomplete or missing. Socket 1: 1 memory controllers detected with total number of 4 channels. 0 QPI ports detected. Max QPI link speed: 14.4 GBytes/second (7.2 GT/second) Detected Intel(R) Xeon(R) CPU E5-2620 v2 _at_ 2.10GHz "Intel(r) microarchitecture codename Ivy Bridge-EP/EN/EX/Ivytown" EXEC : instructions per nominal CPU cycle IPC : instructions per CPU cycle FREQ : relation to nominal CPU frequency='unhalted clock ticks'/'invariant timer ticks' (includes Intel Turbo Boost) AFREQ : relation to nominal CPU frequency while in active state (not in power-saving C state)='unhalted clock ticks'/'invariant timer ticks while in C0-state' (includes Intel Turbo Boost) L3MISS: L3 cache misses L2MISS: L2 cache misses (including other core's L2 cache *hits*) L3HIT : L3 cache hit ratio (0.00-1.00) L2HIT : L2 cache hit ratio (0.00-1.00) L3CLK : ratio of CPU cycles lost due to L3 cache misses (0.00-1.00), in some cases could be >1.0 due to a higher memory latency L2CLK : ratio of CPU cycles lost due to missing L2 cache but still hitting L3 cache (0.00-1.00) READ : bytes read from memory controller (in GBytes) WRITE : bytes written to memory controller (in GBytes) TEMP : Temperature reading in 1 degree Celsius relative to the TjMax temperature (thermal headroom): 0 corresponds to the max temperature Core (SKT) | EXEC | IPC | FREQ | AFREQ | L3MISS | L2MISS | L3HIT | L2HIT | L3CLK | L2CLK | READ | WRITE | TEMP 0 0 0.06 1.02 0.06 0.99 2451 K 3421 K 0.28 0.85 0.36 0.03 N/A N/A 56 1 0 0.03 1.07 0.03 0.99 649 K 1331 K 0.51 0.93 0.18 0.04 N/A N/A 56 2 0 0.06 1.27 0.05 0.99 1020 K 1738 K 0.41 0.92 0.19 0.03 N/A N/A 47 3 0 0.05 1.20 0.04 0.98 1057 K 2256 K 0.53 0.87 0.20 0.05 N/A N/A 47 4 0 0.06 1.28 0.05 0.99 1115 K 1942 K 0.43 0.91 0.20 0.03 N/A N/A 56 5 0 0.08 1.31 0.06 0.99 1046 K 1932 K 0.46 0.94 0.15 0.03 N/A N/A 56 6 0 0.06 1.27 0.05 0.99 1167 K 1866 K 0.37 0.92 0.20 0.02 N/A N/A 53 7 0 0.12 1.45 0.09 0.99 1256 K 2263 K 0.45 0.95 0.12 0.02 N/A N/A 53 8 0 0.05 1.05 0.05 0.98 2372 K 3072 K 0.23 0.87 0.40 0.02 N/A N/A 53 9 0 0.03 1.19 0.03 0.94 968 K 1521 K 0.36 0.48 0.29 0.04 N/A N/A 53 10 0 0.09 1.27 0.07 0.99 1773 K 3184 K 0.44 0.89 0.21 0.03 N/A N/A 52 11 0 0.14 1.33 0.10 0.99 1745 K 2808 K 0.38 0.96 0.14 0.02 N/A N/A 52 12 1 0.04 1.21 0.03 0.98 1116 K 1867 K 0.40 0.69 0.28 0.04 N/A N/A 49 13 1 0.09 1.24 0.07 0.99 2248 K 3901 K 0.42 0.81 0.27 0.04 N/A N/A 49 14 1 0.10 1.35 0.07 0.98 1668 K 2603 K 0.36 0.92 0.20 0.02 N/A N/A 49 15 1 0.05 1.26 0.04 0.99 1435 K 2286 K 0.37 0.68 0.33 0.04 N/A N/A 49 16 1 0.11 1.29 0.08 0.99 1887 K 3232 K 0.42 0.92 0.19 0.03 N/A N/A 44 17 1 0.06 1.28 0.05 0.99 966 K 1626 K 0.41 0.93 0.18 0.02 N/A N/A 44 18 1 0.07 1.30 0.05 0.99 1040 K 1870 K 0.44 0.92 0.18 0.03 N/A N/A 47 19 1 0.12 1.30 0.09 0.99 1973 K 3133 K 0.37 0.93 0.18 0.02 N/A N/A 47 20 1 0.05 1.33 0.04 0.99 898 K 1531 K 0.41 0.91 0.19 0.03 N/A N/A 48 21 1 0.06 1.18 0.05 0.97 1140 K 2881 K 0.60 0.85 0.18 0.06 N/A N/A 48 22 1 0.20 1.34 0.15 1.00 3082 K 4634 K 0.33 0.94 0.17 0.02 N/A N/A 47 23 1 0.10 1.32 0.08 0.99 1732 K 2885 K 0.40 0.93 0.19 0.02 N/A N/A 47 ------------------------------------------------------------------------------------------------------------------- SKT 0 0.07 1.25 0.06 0.98 16 M 27 M 0.39 0.92 0.21 0.03 4.56 2.91 46 SKT 1 0.09 1.30 0.07 0.99 19 M 32 M 0.41 0.91 0.20 0.03 3.44 2.56 44 ------------------------------------------------------------------------------------------------------------------- TOTAL * 0.08 1.27 0.06 0.99 35 M 59 M 0.40 0.91 0.21 0.03 8.00 5.46 N/A Instructions retired: 39 G ; Active cycles: 31 G ; Time (TSC): 21 Gticks ; C0 (active,non-halted) core residency: 6.28 % C1 core residency: 93.72 %; C3 core residency: 0.00 %; C6 core residency: 0.00 %; C7 core residency: 0.00 %; C2 package residency: 0.00 %; C3 package residency: 0.00 %; C6 package residency: 0.00 %; C7 package residency: 0.00 %; PHYSICAL CORE IPC : 2.55 => corresponds to 63.74 % utilization for cores in active state Instructions per nominal CPU cycle: 0.16 => corresponds to 3.95 % core utilization over time interval Intel(r) QPI data traffic estimation in bytes (data traffic coming to CPU/socket through QPI links): | ---------------------------------------------------------------------------------------------- SKT 0 | SKT 1 | ---------------------------------------------------------------------------------------------- Total QPI incoming data traffic: 0 QPI data traffic/Memory controller traffic: 0.00 Intel(r) QPI traffic estimation in bytes (data and non-data traffic outgoing from CPU/socket through QPI links): | ---------------------------------------------------------------------------------------------- SKT 0 | SKT 1 | ---------------------------------------------------------------------------------------------- Total QPI outgoing data and non-data traffic: 0 ---------------------------------------------------------------------------------------------- SKT 0 package consumed 252.82 Joules SKT 1 package consumed 236.10 Joules ---------------------------------------------------------------------------------------------- TOTAL: 488.93 Joules ---------------------------------------------------------------------------------------------- SKT 0 DIMMs consumed 19.62 Joules SKT 1 DIMMs consumed 12.17 Joules ---------------------------------------------------------------------------------------------- TOTAL: 31.79 Joules # sysctl dev.cpu.0 dev.cpu.0.%desc: ACPI CPU dev.cpu.0.%driver: cpu dev.cpu.0.%location: handle=\_SB_.SCK0.C000 dev.cpu.0.%pnpinfo: _HID=ACPI0007 _UID=0 dev.cpu.0.%parent: acpi0 dev.cpu.0.coretemp.delta: 55 dev.cpu.0.coretemp.resolution: 1 dev.cpu.0.coretemp.tjmax: 84.0C dev.cpu.0.coretemp.throttle_log: 0 dev.cpu.0.temperature: 29.0C dev.cpu.0.freq: 2100 dev.cpu.0.freq_levels: 2101/80000 2100/80000 2000/75136 1900/70367 1800/65694 1700/61114 1600/57383 1500/52992 1400/48680 1300/44460 1200/41050 1050/35918 900/30787 750/25656 600/20525 450/15393 300/10262 150/5131 dev.cpu.0.cx_supported: C1/1/1 C2/2/41 dev.cpu.0.cx_lowest: C8 dev.cpu.0.cx_usage: 13.88% 86.11% last 2517usReceived on Tue May 13 2014 - 01:07:18 UTC
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