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Date: Tue, 10 Feb 2009 02:18:33 +0000 From: "Gary L. Grobe" <gary@...be.net> To: "Gary L. Grobe" <gary@...be.net>, "J. Bruce Fields" <bfields@...ldses.org> Cc: linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org, "Andrew Morton" <akpm@...ux-foundation.org> Subject: Re: processes in D state too long too often >>The more likely explanation is that you just switched to a more recent >>distro where "sync" (as opposed to "async") is the option. Depending on >>workload, "async" may improve performance a great deal, at the expense >>of possible data corruption on server reboot! >> >>If you're doing a lot of writing and using NFSv2, then switching to >>NFSv3 may give you performance close to the "async" performance without >>the corruption worries. Just a small update about our rollback I need to correct. Turns out our problem has been solved by going with the 2.6.20-r10 of the gentoo-sources patched kernel. Although gentoo marks this as unstable for amd64, it's working fine. I've made no other changes than going back a few versions on the kernel and adjusting the .config w/ the same settings. Tomorrow I'll likely give the next marked stable patched gentoo-sources kernel another try which was 2.6.24-r10 and recheck my configs and try to gather anything else I can gather from it. -- 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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