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Date: Thu, 9 Feb 2012 14:22:32 +0800 From: Shaohua Li <shaohua.li@...el.com> To: Tejun Heo <tj@...nel.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Jens Axboe <axboe@...nel.dk>, Vivek Goyal <vgoyal@...hat.com>, lkml <linux-kernel@...r.kernel.org>, Knut Petersen <Knut_Petersen@...nline.de>, mroos@...ux.ee Subject: Re: [PATCH] block: strip out locking optimization in put_io_context() 2012/2/9 Tejun Heo <tj@...nel.org>: > Hello, Shaohua. > > On Wed, Feb 08, 2012 at 04:29:53PM +0800, Shaohua Li wrote: >> > the test adds mem=4G in a 2 sockets 16 CPU machine. >> > just make several copy of kernel source in tmpfs (so there is swap >> > depending on your >> > memory size) and run kernel build in the kernel source in the meaning time. >> > there is only one swap device which is a rotating disk. >> > >> > I'll test both patches soon. >> >> Tried all the options, the regression still exists. Any new idea? >> I'll spend some time on it if I can get anything > > Can you please try the following one? Thanks a lot! doesn't work. I also double confirmed b2efa05265d62 causes the regression -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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