Yes i'm using the mtp driver . In total this system has 3 HBA's, 1 internal (Dell perc), and 2 Sun non-raid HBA's. I'm also using multipath, but if i disable multipath i have pretty much the same results..
Bruno On 24-2-2010 19:42, Andy Bowers wrote: > 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 > >
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