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Date: Tue, 22 Feb 2011 09:22:54 -0800 From: Dmitry Torokhov <dmitry.torokhov@...il.com> To: "pantherchen@...sanet.de" <pantherchen@...sanet.de> Cc: Tejun Heo <tj@...nel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: Boot time regression in 2.6.38 after initial wq merge On Tue, Feb 22, 2011 at 04:04:02PM +0100, pantherchen@...sanet.de wrote: > On 02/22/2011 10:15 AM, Dmitry Torokhov wrote: > >I'd like to see rc6 tried. > > Unfortunately it shows the same behavior [0]. (To speed things up, I > used a stripped down kernel config [1], while the first two posted > boot charts used Ubuntu's stock kernels.) > > I was surprised that the kernel directly built from the wq branch > and the last "good" kernel from Linus' tree with the 33 patches > applied don't show the increased boot time - shouldn't they all be > the same? > No, because there were more merges between your last-known-good (which is somewhere in the middle of Jiri's HID merge) and Tejun's workqueue pull. Namely there was merge of my tree that changed serio from using kseriod to the common workqueue. Just to confirm, if you revert commit 8ee294cd9def0004887da7f44b80563493b0a097 from 2.6.38-rc6, does this restore boot time? -- Dmitry -- 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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