Messages in this thread | | | Date | Mon, 29 Nov 2021 08:26:55 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH 1/1] mm: vmscan: Reduce throttling due to a failure to make progress |
| |
On Sun, Nov 28, 2021 at 11:00:59AM +0100, Mike Galbraith wrote: > On Sun, 2021-11-28 at 04:26 +0900, Alexey Avramov wrote: > > I will present the results of the new tests here. > > > > TLDR; > > ===== > > No one Mel's patch doesn't prevent stalls in my tests. > > Seems there may be a problem with the THROTTLE_WRITEBACK bits.. > > > $ for i in {1..10}; do tail /dev/zero; done > > -- 1. with noswap > > ..because the bandaid below (made of 8cd7c588 shards) on top of Mel's > last pulled that one-liner's very pointy fangs. >
This disables writeback throttling in most cases as bdi congested is not updated by the block layer.
-- Mel Gorman SUSE Labs
| |