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| author | Michael Cahill <michael.cahill@wiredtiger.com> | 2015-03-20 17:19:28 +1100 |
|---|---|---|
| committer | Michael Cahill <michael.cahill@wiredtiger.com> | 2015-03-20 17:19:28 +1100 |
| commit | 294b0bce296bebf9790418e5575f59be5bec000c (patch) | |
| tree | f67f1a4d7da177f9ea3b232e041a0aaa8c2a1fa8 /src/docs | |
| parent | 87dba78b65bc869c426363d86d02134aa8f8f2ac (diff) | |
| download | mongo-294b0bce296bebf9790418e5575f59be5bec000c.tar.gz | |
Only align buffers on Linux if direct I/O is configured. Clarify why we round up the allocation size: it usually won't matter because we allocate multiples of the alignment size anyway.
Diffstat (limited to 'src/docs')
| -rw-r--r-- | src/docs/upgrading.dox | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/docs/upgrading.dox b/src/docs/upgrading.dox index 17a44f71985..e4b4cacd850 100644 --- a/src/docs/upgrading.dox +++ b/src/docs/upgrading.dox @@ -21,6 +21,13 @@ the cursor was used. In the WiredTiger 2.5.2 release, calling the WT_CURSOR::reset method to reset the cursor refreshes the statistics returned by the cursor. </dd> + +<dt>Buffer alignment on Linux</dt> +<dd> +In previous releases of WiredTiger, all buffers used for I/O were aligned +to 4KB boundaries by default. In the WiredTiger 2.5.2 release, alignment +is only enforced when direct I/O is configured. +</dd> </dl> @section version_251 Upgrading to Version 2.5.1 |