Messages in this thread | | | Date | Thu, 21 Dec 2006 20:35:50 +0100 | From | Jens Axboe <> | Subject | Re: performance regression from block merge |
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On Thu, Dec 21 2006, Andrew Morton wrote: > > Jens, elapsed time for `mke2fs /dev/hdc5' with the anticipatory scheduler > (at least) has gone from nine seconds to sixty as a result of the recent > block merge.
About when? I'll double check and test here, I'm assuming you mean since 2.6.19?
> This is the enty enth time that block code has been slammed into mainline > without having had exposure to -mm testers or even to me personally, and it > it the second time (at least) that obvious regressions have occurred as a > result. I have a New Year's resolution for you ;)
I usually try and make sure that for-akpm is the same as for-linus, so if you pull that then it'll go to -mm as well. Sometimes the window isn't that big, I'll try and make sure it's seen at least one -mm before going upstream.
-- Jens Axboe
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