Archives
Archives
| From: | Adam Carter <adamcarter3@×××××.com> | ||
|---|---|---|---|
| To: | gentoo-user@l.g.o | ||
| Subject: | Re: [gentoo-user] emerge times blown out | ||
| Date: | Tue, 21 Feb 2023 20:45:57 | ||
| Message-Id: | CAC=wYCFJJS976qXvd5mkQawOS+9sZ+NsCV+B1WioY+fxbaLxxQ@mail.gmail.com | ||
| In Reply to: | Re: [gentoo-user] emerge times blown out by Alexander Puchmayr |
||
| 1 | > |
| 2 | > Could it be that some kind of Spectre mitigation is active? I just read |
| 3 | > about |
| 4 | > some massive performance problems in Kernel 5.19+ on Skylake CPUs. Stable |
| 5 | > gentoo kernel was upgraded to 6.1 recently, which could also be affected |
| 6 | > by |
| 7 | > this problem. |
| 8 | > See https://lkml.iu.edu/hypermail/linux/kernel/2209.1/02248.html |
| 9 | > |
| 10 | > Try turning the mitigations off or revert to a 5.15.x kernel. |
| 11 | > |
| 12 | |
| 13 | I have one skylake and its now running 6.2 with retbleed=stuff. The others |
| 14 | are AMD. |
| 15 | |
| 16 | I will try 5.15.x. I have .configs from that time so it will rule kernel |
| 17 | stuff in/out. |