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Message-ID: <CABXGCsOxkM+ohzudsTg=e5x=UATArAx0zCLnGHFwHHXs9Rz6VA@mail.gmail.com> Date: Tue, 30 Apr 2024 19:42:32 +0500 From: Mikhail Gavrilov <mikhail.v.gavrilov@...il.com> To: Takashi Iwai <tiwai@...e.de> Cc: Linux List Kernel Mailing <linux-kernel@...r.kernel.org>, linux-sound@...r.kernel.org Subject: Re: regression/bisected/6.9 commit 587d67fd929ad89801bcc429675bda90d53f6592 decrease 30% of gaming performance On Tue, Apr 30, 2024 at 5:12 PM Takashi Iwai <tiwai@...e.de> wrote: > Where and how...? That important piece is missing in you info... > And, it's likely a false-positive detection by lockdep. > > When you disable lockdep, does it still show any performance down? Of course without "lockdep" performance is even better than the commit 587d67fd929a just reverted. - mainline kernel without changes with lockdep - 13244 [1] - mainline kernel with reverted 587d67fd929a with lockdep - 19218 [2] - mainline kernel without changes without lockdep - 22440 [3] I think I get what you're saying: after a false-positive detection, lockdep is partially disabled. Yes? How do I understand that lockdep has partially turned off? I would expect to see such a message in the kernel log " INFO: lockdep is turned off." But in my case this message didn't appear. In any case, sorry for wasting your time. [1] https://postimg.cc/G4NPHMyk [2] https://postimg.cc/1n0D7sYH [3] https://postimg.cc/nMYHWRcF -- Best Regards, Mike Gavrilov.
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