Hi Bart,
yep, I got Bruno to run a kernel profile lockstat...
it does look like the mpt issue..
andy
:-------------------------------------------------------------------------------
Count indv cuml rcnt nsec Hottest CPU+PIL Caller
2861 7% 55% 0.00 4889 cpu[1]+5 do_splx
nsec ------ Time Distribution ------ count Stack
1024 | 1 xc_common
2048 |@@ 213 xc_call
4096 |@@@@@@@@@@@ 1136 hat_tlb_inval
8192 |@@@@@@@@@@@@ 1237 x86pte_inval
16384 |@@ 256 hat_pte_unmap
32768 | 15 hat_unload_callback
65536 | 1 hat_unload
131072 | 2 segkmem_free_vn
segkmem_free
vmem_xfree
vmem_free
kfreea
i_ddi_mem_free
rootnex_teardown_copybuf
rootnex_coredma_unbindhdl
rootnex_dma_unbindhdl
ddi_dma_unbind_handle
scsi_dmafree_attr
scsi_free_cache_pkt
-------------------------------------------------------------------------------
Count indv cuml rcnt nsec Hottest CPU+PIL Caller
1857 5% 59% 0.00 1907 cpu[0]+5 getctgsz
nsec ------ Time Distribution ------ count Stack
1024 |@@@ 206 kfreea
2048 |@@@@@@@@@@@@@@@@@@@ 1203 i_ddi_mem_free
4096 |@@@@@@ 387 rootnex_teardown_copybuf
8192 | 24 rootnex_coredma_unbindhdl
16384 | 25 rootnex_dma_unbindhdl
32768 | 12 ddi_dma_unbind_handle
scsi_dmafree_attr
scsi_free_cache_pkt
scsi_destroy_pkt
vhci_scsi_destroy_pkt
scsi_destroy_pkt
sd_destroypkt_for_buf
sd_return_command
sdintr
scsi_hba_pkt_comp
vhci_intr
scsi_hba_pkt_comp
mpt_doneq_empty
mpt_intr
On 24 Feb 2010, at 10:31, Bart Smaalders wrote:
>>
>
> Is this using mpt driver? There's an issue w/ the fix for
> 6863127 that causes performance problems on larger memory
> machines, filed as 6908360.
>
> - Bart
>
>
>
>
>
>
>
> --
> Bart Smaalders Solaris Kernel Performance
> ba...@cyber.eng.sun.com http://blogs.sun.com/barts
> "You will contribute more with mercurial than with thunderbird."
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
