tree 3ec9bc016d835f5fd3d16660a44ee96e24614947
parent 419a598eae03f9e074e3ba61c5e6579d73f92c34
author Willy Tarreau <w@1wt.eu> 1339485416 +0200
committer Willy Tarreau <w@1wt.eu> 1339485416 +0200
encoding latin1

OPTIM: halog: improve cold-cache behaviour when loading a file

Using posix_fadvise() it is possible to tell the system that we're
going to read a whole file at once. The kernel then doubles the
read-ahead size for this file. On Linux with an SSD, this has improved
cold-cache performance by around 20%. Hot-cache is not affected at all.