Re: [Scst-devel] srp/mlx4 irq load sharing

[Bart V. A. <bva...@ac...>]

2011/10/26 Maciej Kuźniar <mac...@k2...>

>  >These results were obtained with fio and direct I/O.
>
> Can you paste output from: grep eth-mlx4 /proc/interrupts ? I'm curious
> how is your interrupts table looks, mainly I'm interested how is your
> cores handle mlxq queues.
>

Here it is (for the target, after a few test runs):

# uname -r
3.1.0+
# grep model.name /proc/cpuinfo
model name      : Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz
model name      : Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz
# cat /proc/interrupts
           CPU0       CPU1
  0:         26          2   IO-APIC-edge      timer
  1:          1          3   IO-APIC-edge      i8042
  4:          1          1   IO-APIC-edge
  8:         55         51   IO-APIC-edge      rtc0
  9:          0          0   IO-APIC-fasteoi   acpi
 12:          4          3   IO-APIC-edge      i8042
 16:          0          0   IO-APIC-fasteoi   pata_marvell, uhci_hcd:usb3
 18:       2080         25   IO-APIC-fasteoi   skge@pci:0000:06:02.0,
ehci_hcd:usb1, uhci_hcd:usb5, uhci_hcd:usb8
 19:       9326       9444   IO-APIC-fasteoi   ata_piix, ata_piix,
uhci_hcd:usb7
 21:          0          0   IO-APIC-fasteoi   uhci_hcd:usb4
 23:          0          0   IO-APIC-fasteoi   ehci_hcd:usb2, uhci_hcd:usb6
 45:          1          0   PCI-MSI-edge      sky2@pci:0000:03:00.0
 46:        143        117   PCI-MSI-edge      snd_hda_intel
 47:    1427136    1427403   PCI-MSI-edge      mlx4-comp-0@pci:0000:01:00.0
 48:          0          0   PCI-MSI-edge      mlx4-comp-1@pci:0000:01:00.0
 49:          0          0   PCI-MSI-edge      mlx4-comp-2@pci:0000:01:00.0
 50:          0          0   PCI-MSI-edge      mlx4-comp-3@pci:0000:01:00.0
 51:          0          0   PCI-MSI-edge      mlx4-comp-4@pci:0000:01:00.0
 52:          0          0   PCI-MSI-edge      mlx4-comp-5@pci:0000:01:00.0
 53:          0          0   PCI-MSI-edge      mlx4-comp-6@pci:0000:01:00.0
 54:          0          0   PCI-MSI-edge      mlx4-comp-7@pci:0000:01:00.0
 55:          0          0   PCI-MSI-edge      mlx4-comp-8@pci:0000:01:00.0
 56:       2211       1458   PCI-MSI-edge      mlx4-async@pci:0000:01:00.0
 57:         15         14   PCI-MSI-edge      snd_hda_intel
NMI:        133        134   Non-maskable interrupts
LOC:      80060      72840   Local timer interrupts
SPU:          0          0   Spurious interrupts
PMI:        133        134   Performance monitoring interrupts
IWI:          0          0   IRQ work interrupts
RES:     993018     979617   Rescheduling interrupts
CAL:       1384        854   Function call interrupts
TLB:       1798       1854   TLB shootdowns
TRM:          0          0   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
MCE:          0          0   Machine check exceptions
MCP:          4          4   Machine check polls
ERR:          0
MIS:          0

Bart.