OSDL DBT-2 AS vs. Deadline 2.5.69-mm3 2.5.69-mm2
We're still working on fixing up the aacraid driver to avoid bounce buffers, but here is data on 2.5.69-mm3 (and 2.5.69-mm2) for a before picture. I also have some tests queued up on STP for 2.5.69-mm3 where I set the TCQ depth to 2. Hopefully I will have results for those tests later today.
METRICS OVER LAST 20 MINUTES:
--------------- -------- ----- ---- -------- -----------------------------------
Kernel Elevator NOTPM CPU% Blocks/s URL
--------------- -------- ----- ---- -------- -----------------------------------
2.5.69-mm3 as 1214 94.0 9352.0 http://khack.osdl.org/stp/271973/ 2.5.69-mm3 deadline 1148 91.9 9097.0 http://khack.osdl.org/stp/271975/
FUNCTIONS SORTED BY TICKS:
-- ------------------------- ------- ------------------------- -------
# as 2.5.69-mm3 ticks deadline 2.5.69-mm3 ticks -- ------------------------- ------- ------------------------- ------- 1 default_idle 5748957 default_idle 6152491 2 bounce_copy_vec 91208 bounce_copy_vec 85515 3 schedule 50436 schedule 49036 4 do_softirq 33556 do_softirq 32467 5 __make_request 28193 __blk_queue_bounce 25887 6 __blk_queue_bounce 27210 scsi_request_fn 20311 7 scsi_request_fn 25400 __make_request 18444 8 scsi_end_request 19051 scsi_end_request 13991 9 try_to_wake_up 11901 try_to_wake_up 11457 10 dio_bio_end_io 11000 dio_bio_end_io
METRICS OVER LAST 20 MINUTES:
--------------- -------- ----- ---- -------- -----------------------------------
Kernel Elevator NOTPM CPU% Blocks/s URL
--------------- -------- ----- ---- -------- -----------------------------------
2.5.69-mm2 as 1185 93.2 9006.7 http://khack.osdl.org/stp/271863/ 2.5.69-mm2 deadline 1142 92.4 8839.4 http://khack.osdl.org/stp/271864/
FUNCTIONS SORTED BY TICKS:
-- ------------------------- ------- ------------------------- -------
# as 2.5.69-mm2 ticks deadline 2.5.69-mm2 ticks -- ------------------------- ------- ------------------------- ------- 1 default_idle 6187082 default_idle 6061459 2 bounce_copy_vec 85400 bounce_copy_vec 87995 3 schedule 50100 schedule 47648 4 do_softirq 32726 do_softirq 31920 5 __make_request 27378 __blk_queue_bounce 25986 6 __blk_queue_bounce 25901 scsi_request_fn 22411 7 scsi_request_fn 24656 __make_request 18982 8 scsi_end_request 18070 scsi_end_request 14279 9 try_to_wake_up 11702 try_to_wake_up 10800 10 dio_bio_end_io 10565 dio_bio_end_io 10228
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Mark Wong - - [email protected]
Open Source Development Lab Inc - A non-profit corporation 15275 SW Koll Parkway - Suite H - Beaverton OR, 97006 (503)-626-2455 x 32 (office)
(503)-626-2436 (fax)
http://www.osdl.org/archive/markw/