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| author | mav <mav@FreeBSD.org> | 2014-01-04 23:42:24 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2014-01-04 23:42:24 +0000 |
| commit | 00fb1dac34b7ee3eb3cb779e348afd1794b9ae55 (patch) | |
| tree | f3b49ae07014b500e7b5bb73b4d82e9a69d37de4 /tests | |
| parent | 91cfd3a7cc7cf9c59406b5a004d657fa9212d2c6 (diff) | |
| download | FreeBSD-src-00fb1dac34b7ee3eb3cb779e348afd1794b9ae55.zip FreeBSD-src-00fb1dac34b7ee3eb3cb779e348afd1794b9ae55.tar.gz | |
MFC r258693:
Make UMA to not blindly force offpage slab header allocation for large
(> PAGE_SIZE) zones. If zone is not multiple to PAGE_SIZE, there may
be enough space for the header at the last page, so we may avoid extra
header memory allocation and hash table update/lookup.
ZFS creates bunch of odd-sized UMA zones (5120, 6144, 7168, 10240, 14336).
This change gives good use to at least some of otherwise lost memory there.
Diffstat (limited to 'tests')
0 files changed, 0 insertions, 0 deletions
