CPU

From Alessandro's Wiki
Jump to: navigation, search

information about processor|informazioni dettagliate sulla CPU:

cat /proc/cpuinfo
  processor       : 0
  vendor_id       : AuthenticAMD
  cpu family      : 15
  model           : 79
  model name      : AMD Athlon(tm) 64 Processor 3500+
  stepping        : 2
  cpu MHz         : 2200.000
  cache size      : 512 KB
  fpu             : yes
  fpu_exception   : yes
  cpuid level     : 1
  wp              : yes
  flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm svm cr8_legacy
  bogomips        : 4411.37
  TLB size        : 1024 4K pages
  clflush size    : 64
  cache_alignment : 64
  address sizes   : 40 bits physical, 48 bits virtual
  power management: ts fid vid ttp tm stc


  • Informazioni sulla frequenza e il gestore di frequenza della CPU
[root@elwood ~]# cpufreq-info
  • Settare la frequenza (a 2,2 GHz)
[root@elwood ~]# cpufreq-selector -f 2200000

compiling system

emerge -e world --keep-going real 1142m28.941s user 1361m38.095s sys 381m0.194s

* The following 6 packages have failed to build or install:
*
*  ('ebuild', '/', 'media-tv/tvtime-1.0.2-r1', 'merge'), Log file:
*   '/var/tmp/portage/media-tv/tvtime-1.0.2-r1/temp/build.log'
*  ('ebuild', '/', 'dev-lang/python-2.4.6', 'merge'), Log file:
*   '/var/tmp/portage/dev-lang/python-2.4.6/temp/build.log'
*  ('ebuild', '/', 'media-video/nvidia-settings-185.18.36', 'merge'), Log file:
*   '/var/tmp/portage/media-video/nvidia-settings-185.18.36/temp/build.log'
*  ('ebuild', '/', 'net-analyzer/nmap-5.00-r2', 'merge'), Log file:
*   '/var/tmp/portage/net-analyzer/nmap-5.00-r2/temp/build.log'
*  ('ebuild', '/', 'dev-python/gtkmozembed-python-2.19.1-r11', 'merge'), Log file:
*   '/var/tmp/portage/dev-python/gtkmozembed-python-2.19.1-r11/temp/build.log'
*  ('ebuild', '/', 'x11-wm/compiz-0.8.4-r2', 'merge'), Log file:
*   '/var/tmp/portage/x11-wm/compiz-0.8.4-r2/temp/build.log'


CPU History (mine)

  • CPU Type Passmark CPU Mark (higher is better) Rank (lower is better)
  1. AMD Athlon 64 3500+ 541 536
  2. AMD Athlon 64 X2 Dual Core 5600+ 1501 243
  3. AMD Phenom II X4 965 4249 43

contex switches

powertop
pidstat -wt
pidstat -w 10 1
watch -tdn1 cat /proc/interrupts