git: tmpfs - Cycle through buffer cache when pageout daemon is running

[Matthew Dillon]

commit ca1197e29e4bb72c769cc49feb7ce22c471f1070
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Mon Feb 10 22:11:35 2020 -0800

    tmpfs - Cycle through buffer cache when pageout daemon is running
    
    * tmpfs usually allocates VM pages directly, but this can overwhelm
      the VM system in low-memory situations, causing processes to make
      very little progress in normal run-time operation if one or more
      of them are doing heavy writing to tmpfs.
    
    * Significantly improves dsynth performance in low-memory situations
      where multiple worker slots are in the install-pkgs phase.

Summary of changes:
 sys/vfs/tmpfs/tmpfs_vnops.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ca1197e29e4bb72c769cc49feb7ce22c471f1070


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