Messages in this thread | | | From | Mikhail Gavrilov <> | Date | Sat, 3 Feb 2024 06:02:15 +0500 | Subject | This is the fourth time I’ve tried to find what le d to the regression of outgoing network speed and each time I find the merge commit 8c94ccc7cd691472461448f98e2372c75849 406c |
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Hi, I'm trying to find the first bad commit that led to a decreased network outgoing speed. And every time I come to a huge merge [Merge tag 'usb-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb] I have already triple-checked all my answers and speed measurements. I don't understand where I'm making a mistake.
Let's try to figure it out together.
Input data: Two computers connected 1Gbps link. Both have the same hardware. Network: RTL8125 2.5GbE Controller (rev 05)
When I copy files from one computer to another and kernel snapshot builded from commit 296455ade1fd I have 97-110MB/sec which is almost max speed of 1Gbps link. When I move to commit 9d1694dc91ce I have only 66-70MB/sec which is significantly slower.
I bisected the issue by measuring network speed on each step. I save all results to file [1]
[1] file is attached as a zip archive.
# first bad commit: [8c94ccc7cd691472461448f98e2372c75849406c] Merge tag 'usb-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
-- Best Regards, Mike Gavrilov. [unhandled content-type:application/zip] | |