- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Greetings,
I built and ran the PCM code on Ubuntu 16.04 PC with Intel Core i7-4810MQ running at 2.8GHz. "pcm.x" returns some memory stats but "pcm-memory.x" fails. How can I resolve the issue?
Output of pcm-memory.x:
$ sudo ./pcm-memory.x Processor Counter Monitor: Memory Bandwidth Monitoring Utility ($Format:%ci ID=%h$) This utility measures memory bandwidth per channel or per DIMM rank in real-time Number of physical cores: 4 Number of logical cores: 8 Number of online logical cores: 8 Threads (logical cores) per physical core: 2 Num sockets: 1 Physical cores per socket: 4 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: 2800000000 Hz Package thermal spec power: 47 Watt; Package minimum power: 0 Watt; Package maximum power: 0 Watt; Access to Processor Counter Monitor has denied (no MSR or PCI CFG space access). Cleaning up
Parts of pcm.x output:
$ sudo ./pcm.x Processor Counter Monitor ($Format:%ci ID=%h$) Number of physical cores: 4 Number of logical cores: 8 Number of online logical cores: 8 Threads (logical cores) per physical core: 2 Num sockets: 1 Physical cores per socket: 4 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: 2800000000 Hz Package thermal spec power: 47 Watt; Package minimum power: 0 Watt; Package maximum power: 0 Watt; Detected Intel(R) Core(TM) i7-4810MQ CPU @ 2.80GHz "Intel(r) microarchitecture codename Haswell" stepping 3 <snip> Instructions retired: 27 M ; Active cycles: 124 M ; Time (TSC): 2794 Mticks ; C0 (active,non-halted) core residency: 0.59 % C1 core residency: 4.26 %; C3 core residency: 0.32 %; C6 core residency: 0.18 %; C7 core residency: 94.65 %; C2 package residency: 79.76 %; C3 package residency: 0.00 %; C6 package residency: 0.00 %; C7 package residency: 0.00 %; PHYSICAL CORE IPC : 0.45 => corresponds to 11.18 % utilization for cores in active state Instructions per nominal CPU cycle: 0.00 => corresponds to 0.06 % core utilization over time interval --------------------------------------------------------------------------------------------------------------- MEM (GB)->| READ | WRITE | IO | CPU energy | --------------------------------------------------------------------------------------------------------------- SKT 0 0.64 0.07 0.50 8.39 ---------------------------------------------------------------------------------------------------------------
Link Copied
1 Reply
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
My current understanding is that you have to rely on Integrated Memory Controller counters stated in https://software.intel.com/en-us/articles/monitoring-integrated-memory-controller-requests-in-the-2nd-3rd-and-4th-generation-intel . Those are reported by pcm.x.

Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page