On 2019/9/25 下午12:15, Chris Murphy wrote: > $ sudo btrfs balance start -dconvert=single,soft / > > It's definitely a 5.3.0 regression, it works without -f on 5.2.15. > Super slow. The media should be able to write at 20M/s. Already pinned down and send the fix (CCed to you) https://patchwork.kernel.org/patch/11159927/ Will send out a test case soon too. Thanks, Qu > > Total DISK READ : 0.00 B/s | Total DISK WRITE : 0.00 B/s > Actual DISK READ: 0.00 B/s | Actual DISK WRITE: 1418.15 K/s > TID PRIO USER DISK READ DISK WRITE SWAPIN IO> > COMMAND > 1138 be/4 root 0.00 B/s 0.00 B/s 0.00 % 99.18 % btrfs > balance start -dconvert single soft / > 402 be/4 root 0.00 B/s 0.00 B/s 0.00 % 3.09 % > [kworker/0:2-events] > > But anyway, it completed without error. > > > --- > Chris Murphy >
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