updated manual

dev
Yann Collet 2018-11-15 10:52:24 -08:00
parent 06c8d5a4f4
commit 4542b9f1cf
1 changed files with 22 additions and 0 deletions

View File

@ -510,6 +510,28 @@ size_t ZSTD_sizeof_DDict(const ZSTD_DDict* ddict);
* enum. See the comments on that enum for an
* explanation of the feature.
*/
</b>/* Question : should rsyncable be categorized as experimental, or be candidate for stable ? */<b>
ZSTD_p_rsyncable, </b>/* Enables rsyncable mode, which makes compressed<b>
* files more rsync friendly by adding periodic
* synchronization points to the compressed data.
* The target average block size is
* ZSTD_p_jobSize / 2. You can modify the job size
* to increase or decrease the granularity of the
* synchronization point. Once the jobSize is
* smaller than the window size, you will start to
* see degraded compression ratio.
* NOTE: This only works when multithreading is
* enabled.
* NOTE: You probably don't want to use this with
* long range mode, since that will decrease the
* effectiveness of the synchronization points,
* but your milage may vary.
* NOTE: Rsyncable mode will limit the maximum
* compression speed to approximately 400 MB/s.
* If your compression level is already running
* significantly slower than that (< 200 MB/s),
* the speed won't be significantly impacted.
*/
} ZSTD_cParameter;
</b></pre><BR>
<pre><b>size_t ZSTD_CCtx_setParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param, unsigned value);