"why is my Linux so damn slow?"

[M. Fioretti]

On Sat, Feb 12, 2011 12:47:13 PM -0600, Rick Sewill (rsewill at gmail.com) wrote:

> Could you show us the output of twice, the second time a few seconds
> after the first time so we can see if any interrupt number changes fast. 
> more /proc/interrupts

here are two runs, 5/6 seconds apart:

[root at polaris ~]# more /proc/interrupts
           CPU0       CPU1       
  0:        136        180   IO-APIC-edge      timer
  1:          0          2   IO-APIC-edge      i8042
  4:          0          2   IO-APIC-edge    
  7:          1          0   IO-APIC-edge      parport0
  8:          0          1   IO-APIC-edge      rtc0
  9:          0          0   IO-APIC-fasteoi   acpi
 12:          0          4   IO-APIC-edge      i8042
 14:          0          0   IO-APIC-edge      pata_amd
 15:          0          0   IO-APIC-edge      pata_amd
 17:          0          2   IO-APIC-fasteoi   firewire_ohci
 20:     116972        135   IO-APIC-fasteoi   ohci_hcd:usb3, nvidia
 21:        947        289   IO-APIC-fasteoi   ehci_hcd:usb2, hda_intel
 22:          0          3   IO-APIC-fasteoi   ehci_hcd:usb1
 23:     252957         24   IO-APIC-fasteoi   ohci_hcd:usb4
 43:     449718       5490   PCI-MSI-edge      ahci
 44:     850242         23   PCI-MSI-edge      eth0
NMI:          0          0   Non-maskable interrupts
LOC:   12772218   13583547   Local timer interrupts
SPU:          0          0   Spurious interrupts
PMI:          0          0   Performance monitoring interrupts
PND:          0          0   Performance pending work
RES:    6896487    7547957   Rescheduling interrupts
CAL:       8607      11701   Function call interrupts
TLB:      43915      42920   TLB shootdowns
TRM:          0          0   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
MCE:          0          0   Machine check exceptions
MCP:        103        103   Machine check polls
ERR:          1
MIS:          0
[root at polaris ~]# 
[root at polaris ~]# more /proc/interrupts
           CPU0       CPU1       
  0:        136        180   IO-APIC-edge      timer
  1:          0          2   IO-APIC-edge      i8042
  4:          0          2   IO-APIC-edge    
  7:          1          0   IO-APIC-edge      parport0
  8:          0          1   IO-APIC-edge      rtc0
  9:          0          0   IO-APIC-fasteoi   acpi
 12:          0          4   IO-APIC-edge      i8042
 14:          0          0   IO-APIC-edge      pata_amd
 15:          0          0   IO-APIC-edge      pata_amd
 17:          0          2   IO-APIC-fasteoi   firewire_ohci
 20:     116985        135   IO-APIC-fasteoi   ohci_hcd:usb3, nvidia
 21:        947        289   IO-APIC-fasteoi   ehci_hcd:usb2, hda_intel
 22:          0          3   IO-APIC-fasteoi   ehci_hcd:usb1
 23:     252957         24   IO-APIC-fasteoi   ohci_hcd:usb4
 43:     449809       5490   PCI-MSI-edge      ahci
 44:     850456         23   PCI-MSI-edge      eth0
NMI:          0          0   Non-maskable interrupts
LOC:   12774821   13585530   Local timer interrupts
SPU:          0          0   Spurious interrupts
PMI:          0          0   Performance monitoring interrupts
PND:          0          0   Performance pending work
RES:    6896974    7548786   Rescheduling interrupts
CAL:       8608      11703   Function call interrupts
TLB:      43919      42921   TLB shootdowns
TRM:          0          0   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
MCE:          0          0   Machine check exceptions
MCP:        103        103   Machine check polls
ERR:          1
MIS:          0
[root at polaris ~]# 


will try now to find out the clock interrupt rate. Thanks