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Reduce the difference between hirunningspace and lorunningspace,

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it should help interactivity in edge cases.
This commit is contained in:
Ivan Voras 2010-10-25 14:05:25 +00:00
parent 42fe684c1a
commit 61eee6b8a7
1 changed files with 3 additions and 3 deletions

6
sys/kern/vfs_bio.c

@ -623,16 +623,16 @@ bufinit(void)
lobufspace = hibufspace - MAXBSIZE;
/*
* Note: The 16 MB upper limit for hirunningspace was chosen
* Note: The 16 MiB upper limit for hirunningspace was chosen
* arbitrarily and may need further tuning. It corresponds to
* 128 outstanding write IO requests (if IO size is 128 KiB),
* which fits with many RAID controllers' tagged queuing limits.
* The lower 1 MB limit is the historical upper limit for
* The lower 1 MiB limit is the historical upper limit for
* hirunningspace.
*/
hirunningspace = lmax(lmin(roundup(hibufspace / 64, MAXBSIZE),
16 * 1024 * 1024), 1024 * 1024);
lorunningspace = roundup(hirunningspace / 2, MAXBSIZE);
lorunningspace = roundup((hirunningspace * 2) / 3, MAXBSIZE);
/*
* Limit the amount of malloc memory since it is wired permanently into