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Message-ID: <20071009101916.5a7f5c19@0xff.cl> Date: Tue, 9 Oct 2007 10:19:16 -0400 From: Gustavo Chain <g@...f.cl> To: linux-kernel@...r.kernel.org Subject: Re: howto boost write(2) performance? El Tue, 09 Oct 2007 15:50:17 +0200 Michael Stiller <ms@...ale.net> escribió: > Hi list, > > i'm developing an application (in C) which needs to write about > 1Gbit/s (125Mb/s) to a disk array attached via U320 SCSI. > It runs on Dual Core 2 Xeons @2Ghz utilizing kernel 2.6.22.7. > > I buffer the data in (currently 4) 400Mb buffers and use write(2) in a > dedicated thread to write them to the raw disk (no fs). > > The write(2) performance is not good enough, the writer threads take > to much time, and i ask you for ideas, howto to boost the write > performance. > > Maybe mmaping the disk would work? > > Cheers, > > -Michael > > PS. I would like to be cc'd as i usually don't read the list due to > high traffic. > > - > 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/ Create a 1GB ram disk, write data there, and then backup into a hard disk -- Gustavo Chaín Dumit - 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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