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Code Issues Releases Activity

- Update cachelimit after hashsize and bucketlimit were set.

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Reported by:	az
Reviewed by:	melifaro
Approved by:	kib (mentor)
MFC after:	1 week
This commit is contained in:
Andrey Zonov 2012-10-19 14:00:03 +00:00
parent 6a91a98054
commit 32fe38f123
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=241735
1 changed files with 11 additions and 6 deletions
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17
sys/netinet/tcp_hostcache.c
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@ -174,6 +174,7 @@ static MALLOC_DEFINE(M_HOSTCACHE, "hostcache", "TCP hostcache");
void void
tcp_hc_init(void) tcp_hc_init(void)
{ {
u_int cache_limit;
int i; int i;
/* /*
@ -182,23 +183,27 @@ tcp_hc_init(void)
V_tcp_hostcache.cache_count = 0; V_tcp_hostcache.cache_count = 0;
V_tcp_hostcache.hashsize = TCP_HOSTCACHE_HASHSIZE; V_tcp_hostcache.hashsize = TCP_HOSTCACHE_HASHSIZE;
V_tcp_hostcache.bucket_limit = TCP_HOSTCACHE_BUCKETLIMIT; V_tcp_hostcache.bucket_limit = TCP_HOSTCACHE_BUCKETLIMIT;
V_tcp_hostcache.cache_limit =
V_tcp_hostcache.hashsize * V_tcp_hostcache.bucket_limit;
V_tcp_hostcache.expire = TCP_HOSTCACHE_EXPIRE; V_tcp_hostcache.expire = TCP_HOSTCACHE_EXPIRE;
V_tcp_hostcache.prune = TCP_HOSTCACHE_PRUNE; V_tcp_hostcache.prune = TCP_HOSTCACHE_PRUNE;
TUNABLE_INT_FETCH("net.inet.tcp.hostcache.hashsize", TUNABLE_INT_FETCH("net.inet.tcp.hostcache.hashsize",
&V_tcp_hostcache.hashsize); &V_tcp_hostcache.hashsize);
TUNABLE_INT_FETCH("net.inet.tcp.hostcache.cachelimit",
&V_tcp_hostcache.cache_limit);
TUNABLE_INT_FETCH("net.inet.tcp.hostcache.bucketlimit",
&V_tcp_hostcache.bucket_limit);
if (!powerof2(V_tcp_hostcache.hashsize)) { if (!powerof2(V_tcp_hostcache.hashsize)) {
printf("WARNING: hostcache hash size is not a power of 2.\n"); printf("WARNING: hostcache hash size is not a power of 2.\n");
V_tcp_hostcache.hashsize = TCP_HOSTCACHE_HASHSIZE; /* default */ V_tcp_hostcache.hashsize = TCP_HOSTCACHE_HASHSIZE; /* default */
} }
V_tcp_hostcache.hashmask = V_tcp_hostcache.hashsize - 1; V_tcp_hostcache.hashmask = V_tcp_hostcache.hashsize - 1;
TUNABLE_INT_FETCH("net.inet.tcp.hostcache.bucketlimit",
&V_tcp_hostcache.bucket_limit);
cache_limit = V_tcp_hostcache.hashsize * V_tcp_hostcache.bucket_limit;
V_tcp_hostcache.cache_limit = cache_limit;
TUNABLE_INT_FETCH("net.inet.tcp.hostcache.cachelimit",
&V_tcp_hostcache.cache_limit);
if (V_tcp_hostcache.cache_limit > cache_limit)
V_tcp_hostcache.cache_limit = cache_limit;
/* /*
* Allocate the hash table. * Allocate the hash table.
*/ */