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| author | Rainer Gerhards <rgerhards@adiscon.com> | 2008-10-22 13:54:40 +0200 |
|---|---|---|
| committer | Rainer Gerhards <rgerhards@adiscon.com> | 2008-10-22 13:54:40 +0200 |
| commit | cf38fc81759b01af5125b1a05e0d6fe8e2e1bc21 (patch) | |
| tree | 534bfa946536dd45f3127912f268ee960c6a3285 /runtime/queue.c | |
| parent | b6f496f8619b02c50d3f5ced34eff279244b6e9b (diff) | |
| download | rsyslog-cf38fc81759b01af5125b1a05e0d6fe8e2e1bc21.tar.gz rsyslog-cf38fc81759b01af5125b1a05e0d6fe8e2e1bc21.tar.xz rsyslog-cf38fc81759b01af5125b1a05e0d6fe8e2e1bc21.zip | |
added a setting "$OptimizeForUniprocessor"
...to enable users to turn off pthread_yield calls which are
counter-productive on multiprocessor machines (but have been
shown to be useful on uniprocessors)
Diffstat (limited to 'runtime/queue.c')
| -rw-r--r-- | runtime/queue.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/runtime/queue.c b/runtime/queue.c index 7fa2df91..a3e29a96 100644 --- a/runtime/queue.c +++ b/runtime/queue.c @@ -1285,6 +1285,7 @@ rsRetVal queueConstruct(queue_t **ppThis, queueType_t qType, int iWorkerThreads, /* we have an object, so let's fill the properties */ objConstructSetObjInfo(pThis); + pThis->bOptimizeUniProc = glbl.GetOptimizeUniProc(); if((pThis->pszSpoolDir = (uchar*) strdup((char*)glbl.GetWorkDir())) == NULL) ABORT_FINALIZE(RS_RET_OUT_OF_MEMORY); @@ -2208,8 +2209,10 @@ finalize_it: /* the following pthread_yield is experimental, but brought us performance * benefit. For details, please see http://kb.monitorware.com/post14216.html#p14216 * rgerhards, 2008-10-09 + * but this is only true for uniprocessors, so we guard it with an optimize flag -- rgerhards, 2008-10-22 */ - pthread_yield(); + if(pThis->bOptimizeUniProc) + pthread_yield(); } RETiRet; |