On Thu, Dec 02, 2021 at 08:42:29PM +0900, Alexey Avramov wrote: > I tested this [1] patch on top of 5.16-rc2, the same tests. > Thanks for all the tests you've done for this, it's much appreciated. > - with noswap: > > 2021-12-02 19:41:19,279: Stall times for the last 146.5s: > 2021-12-02 19:41:19,279: ----------- > 2021-12-02 19:41:19,279: some cpu 1.1s, avg 0.8% > 2021-12-02 19:41:19,279: ----------- > 2021-12-02 19:41:19,279: some io 116.2s, avg 79.3% > 2021-12-02 19:41:19,280: full io 109.6s, avg 74.8% > 2021-12-02 19:41:19,280: ----------- > 2021-12-02 19:41:19,280: some memory 3.9s, avg 2.6% > 2021-12-02 19:41:19,280: full memory 3.8s, avg 2.6% > > Excellent! > > psi log: > https://raw.githubusercontent.com/hakavlad/cache-tests/main/516-reclaim-throttle/516-rc2/patch6/noswap/psi > > mem log: > https://raw.githubusercontent.com/hakavlad/cache-tests/main/516-reclaim-throttle/516-rc2/patch6/noswap/mem > > - with swappiness=0 > > 2021-12-02 19:46:04,860: Stall times for the last 144.5s: > 2021-12-02 19:46:04,860: ----------- > 2021-12-02 19:46:04,860: some cpu 1.1s, avg 0.8% > 2021-12-02 19:46:04,860: ----------- > 2021-12-02 19:46:04,860: some io 106.9s, avg 74.0% > 2021-12-02 19:46:04,861: full io 101.3s, avg 70.1% > 2021-12-02 19:46:04,861: ----------- > 2021-12-02 19:46:04,861: some memory 99.6s, avg 68.9% > 2021-12-02 19:46:04,861: full memory 95.6s, avg 66.2% > > PSI mem pressure was high, but there were no long stalls. > Great, so can I assume you're ok with this version? If yes, can I add the following? Tested-by: Alexey Avramov <hakavlad@xxxxxxxx> -- Mel Gorman SUSE Labs