On Thu, Jun 29, 2017 at 10:57:26AM -0700, Nick Terrell wrote:
> The time it took to execute cp vmlinux /mnt/btrfs && sync
> dropped from 1.70s to 1.44s with lzo compression, and from 2.04s to 1.80s
> for zstd compression.
> - if (*free_ws < num_online_cpus()) {
> + if (*free_ws <= num_online_cpus()) {
A simple, self-contained, one-character fix that gives a nice speed-up.
What about getting this for 4.13 or perhaps even 4.9?
Workspace flickering is not a very serious bug, but if we can restore wasted
write speed _this_ easily...
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