On Sat, May 20, 2023 at 09:35:32PM +0800, Wang Yugui wrote: > test result of the second version of the patch. > > # dmesg |grep 'index\|suppressed' > [ 89.376149] index:0 len:292 order:2 > [ 97.862938] index:0 len:4096 order:2 > [ 98.340665] index:0 len:4096 order:2 > [ 98.346633] index:0 len:4096 order:2 > [ 98.352323] index:0 len:4096 order:2 > [ 98.359952] index:0 len:4096 order:2 > [ 98.364015] index:3 len:4096 order:2 > [ 98.368943] index:0 len:4096 order:2 > [ 98.374285] index:0 len:4096 order:2 > [ 98.379163] index:3 len:4096 order:2 > [ 98.384760] index:0 len:4096 order:2 > [ 181.103751] iomap_get_folio: 342 callbacks suppressed > [ 181.103761] index:0 len:292 order:2 Thanks. Clearly we're not creating large folios in the write path. I tracked it down, and used your fio command. My system creates 1MB folios, so I think yours will too. Patch series incoming (I fixed a couple of other oversights too).
