d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use the tunable maxusers rather than the compile-time one. Evaluate and

Browse Source 
initialize in the right order to make derivative settings work right.
eg: at compile time, nmbufs was double nmbclusters.  For POLA this should
work the same at runtime.
This commit is contained in:
Peter Wemm 2001-07-26 23:08:31 +00:00
parent bd40659f85
commit a03bd29498
1 changed files with 18 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
sys/kern/subr_mbuf.c
View File

@ -143,25 +143,21 @@ struct mb_pcpu_list {
* allocatable by the sfbuf allocator (found in uipc_syscalls.c)
*/
#ifndef NMBCLUSTERS
#define NMBCLUSTERS (1024 + MAXUSERS * 64)
#define NMBCLUSTERS (1024 + maxusers * 64)
#endif
#ifndef NMBUFS
#define NMBUFS (NMBCLUSTERS * 2)
#define NMBUFS (nmbclusters * 2)
#endif
#ifndef NSFBUFS
#define NSFBUFS (512 + MAXUSERS * 16)
#define NSFBUFS (512 + maxusers * 16)
#endif
#ifndef NMBCNTS
#define NMBCNTS (NMBCLUSTERS + NSFBUFS)
#define NMBCNTS (nmbclusters + nsfbufs)
#endif
int nmbufs = NMBUFS;
int nmbclusters = NMBCLUSTERS;
int nmbcnt = NMBCNTS;
int nsfbufs = NSFBUFS;
TUNABLE_INT("kern.ipc.nmbufs", &nmbufs);
TUNABLE_INT("kern.ipc.nmbclusters", &nmbclusters);
TUNABLE_INT("kern.ipc.nmbcnt", &nmbcnt);
TUNABLE_INT("kern.ipc.nsfbufs", &nsfbufs);
int nmbufs;
int nmbclusters;
int nmbcnt;
int nsfbufs;
/*
* Perform sanity checks of tunables declared above.
@ -169,9 +165,19 @@ TUNABLE_INT("kern.ipc.nsfbufs", &nsfbufs);
static void
tunable_mbinit(void *dummy)
{
/*
* This has to be done before VM init.
*/
nmbclusters = NMBCLUSTERS;
TUNABLE_INT_FETCH("kern.ipc.nmbclusters", &nmbclusters);
nmbufs = NMBUFS;
TUNABLE_INT_FETCH("kern.ipc.nmbufs", &nmbufs);
nsfbufs = NSFBUFS;
TUNABLE_INT_FETCH("kern.ipc.nsfbufs", &nsfbufs);
nmbcnt = NMBCNTS;
TUNABLE_INT_FETCH("kern.ipc.nmbcnt", &nmbcnt);
/* Sanity checks */
if (nmbufs < nmbclusters * 2)
nmbufs = nmbclusters * 2;
if (nmbcnt < nmbclusters + nsfbufs)