On 2018/6/21 14:49, Yunlei He wrote: > This patch fix hungtask problem which can be reproduced as follow: > > Thread 0~3: > while true > do > touch /xxx/test/file_xxx > done > > Thread 4 write a new checkpoint every three seconds. > > In the meantime, fio start 16 threads for randwrite. > > With my debug info, cycles num will exceed 1000 in function > f2fs_sync_dirty_inodes, and most of cycle will be dropped > into congestion_wait() and sleep more than 20ms. Cycles num > reduced to 3 with this patch. > > Signed-off-by: Yunlei He <heyun...@huawei.com>
Reviewed-by: Chao Yu <yuch...@huawei.com> Thanks, ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
