Messages in this thread | | | Date | Fri, 7 Nov 2008 15:32:16 +0100 | From | Jens Axboe <> | Subject | Re: [PATCH][v3] blktrace: conversion to tracepoints |
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On Fri, Nov 07 2008, Alan D. Brunelle wrote: > > > > > I'll apply this for 2.6.29. I'm assuming you have tested this as well? > > > > FYI: I tested this on a 16-way AMD x86_64 box (128GB RAM, a couple of > Smart Array (CCISS) P800's). Running Jens' for-2.6.29 git tree versus a > recent Linus 2.6.28-rc3 tree. I was doing kernel makes (10 passes for > both kernels), and found that things worked just fine. All values below > are in seconds: > > 2.6.28-rc3: > > Part Min Avg Max Dev > -------- ------- ------- ------- ------- > untar 17.996 22.565 23.522 1.690 > mk-cfg 3.279 3.454 3.529 0.070 > mk-kern 140.837 141.557 142.549 0.626 > mk-clean 10.460 11.604 12.710 0.758 > -------- ------- ------- ------- ------- > Combd 172.941 179.180 181.600 2.470 > ======== ======= ======= ======= ======= > %sys 7.67% 7.78% 8.03% 0.114 > > > Jens' origin/for-2.6.29: > > Part Min Avg Max Dev > -------- ------- ------- ------- ------- > untar 18.138 22.576 24.279 1.693 > mk-cfg 3.270 3.483 3.751 0.118 > mk-kern 141.290 142.115 142.666 0.439 > mk-clean 8.263 9.609 10.211 0.624 > -------- ------- ------- ------- ------- > Combd 173.736 177.783 179.654 1.786 > ======== ======= ======= ======= ======= > %sys 7.77% 7.85% 8.01% 0.074 > > > Not sure why the 'make clean' portion of the runs went noticeably better > with the newer code, but in any event, I don't see much difference > elsewhere, and for sure the blktrace portion of things worked correctly. > [blktrace + blkparse + blkrawverify + btt all worked just fine out of > the box.]
Thanks a lot for running that test Alan, I think it looks fine!
-- Jens Axboe
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