diff options
-rw-r--r-- | TUNING | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -22,7 +22,13 @@ See Unicorn::Configurator for details on the config file format. listeners under Linux 2.6 because auto-tuning is enabled. UNIX domain sockets do not have auto-tuning buffer sizes; so increasing those will allow syscalls and task switches to be saved for larger requests - and responses. + and responses. If your app only generates small responses or expects + small requests, you may shrink the buffer sizes to save memory, too. + +* Having socket buffers too large can also be detrimental or have + little effect. Huge buffers can put more pressure on the allocator + and may also thrash CPU caches, cancelling out performance gains + one would normally expect. * Setting "preload_app true" can allow copy-on-write-friendly GC to be used to save memory. It will probably not work out of the box with |