Re: [PATCH 0/2] thread-pool: fix performance regression

2022-05-09 Thread Paolo Bonzini
On 5/9/22 08:42, Lukáš Doktor wrote: Dne 06. 05. 22 v 20:55 Lukáš Doktor napsal(a): Hello Paolo, folks, I gave it a try (on top of the f9fc8932) and it's better than the f9fc8932, better than the previous patch by Stefan, but still I'm not reaching the performance of d7482ffe97 (before the f9fc8

Re: [PATCH 0/2] thread-pool: fix performance regression

2022-05-08 Thread Lukáš Doktor
Dne 06. 05. 22 v 20:55 Lukáš Doktor napsal(a): > Hello Paolo, folks, I gave it a try (on top of the f9fc8932) and it's better > than the f9fc8932, better than the previous patch by Stefan, but still I'm > not reaching the performance of d7482ffe97 (before the f9fc8932 commit): > > f9f| 0.0

Re: [PATCH 0/2] thread-pool: fix performance regression

2022-05-06 Thread Lukáš Doktor
Hello Paolo, folks, I gave it a try (on top of the f9fc8932) and it's better than the f9fc8932, better than the previous patch by Stefan, but still I'm not reaching the performance of d7482ffe97 (before the f9fc8932 commit): f9f| 0.0 | -2.8 | 0.6 stefan | -3.1 | -1.2 | -2.2 paolo | 5.3 |

[PATCH 0/2] thread-pool: fix performance regression

2022-05-06 Thread Paolo Bonzini
Together, these two patches fix the performance regression induced by QemuSemaphore; individually they don't though. 6.2: iops: min=58051, max=62260, avg=60282.57, stdev=1081.18, samples=30 clat percentiles (usec): 1.00th=[ 490], 99.99th=[ 775] iops: min=59401, max=