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Correctly handle number of cores and power of 2. Merged from the package already had this. Fixes #4212

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This commit is contained in:
Warren Baker 2015-01-14 13:09:31 +02:00
parent a6a42b6d06
commit 46762efee6
1 changed files with 9 additions and 13 deletions
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22
etc/inc/unbound.inc
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@ -60,23 +60,19 @@ function unbound_optimization() {
* Use 1 to disable threading, if for some reason this sysctl fails.
*/
$numprocs = intval(get_single_sysctl('kern.smp.cpus'));
if ($numprocs > 0)
if ($numprocs > 1) {
$optimization['number_threads'] = "num-threads: {$numprocs}";
else
$optimize_num = pow(2,floor(log($numprocs,2)));
} else {
$optimization['number_threads'] = "num-threads: 1";
$optimize_num = 4;
}
// Slabs to help reduce lock contention.
if ($numprocs > 4) {
$optimization['msg_cache_slabs'] = "msg-cache-slabs: {$numprocs}";
$optimization['rrset_cache_slabs'] = "rrset-cache-slabs: {$numprocs}";
$optimization['infra_cache_slabs'] = "infra-cache-slabs: {$numprocs}";
$optimization['key_cache_slabs'] = "key-cache-slabs: {$numprocs}";
} else {
$optimization['msg_cache_slabs'] = "msg-cache-slabs: 4";
$optimization['rrset_cache_slabs'] = "rrset-cache-slabs: 4";
$optimization['infra_cache_slabs'] = "infra-cache-slabs: 4";
$optimization['key_cache_slabs'] = "key-cache-slabs: 4";
}
$optimization['msg_cache_slabs'] = "msg-cache-slabs: {$optimize_num}";
$optimization['rrset_cache_slabs'] = "rrset-cache-slabs: {$optimize_num}";
$optimization['infra_cache_slabs'] = "infra-cache-slabs: {$optimize_num}";
$optimization['key_cache_slabs'] = "key-cache-slabs: {$optimize_num}";
// Size of the RRset cache
$optimization['rrset_cache_size'] = "rrset-cache-size: 8m";