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LRU: use C99 variable len stack array in evictionPoolPopulate().

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This commit is contained in:
antirez 2016-07-08 14:17:11 +02:00
parent 2a1247309a
commit 3b9495d20d
1 changed files with 1 additions and 11 deletions
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12
src/evict.c
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@ -115,16 +115,7 @@ struct evictionPoolEntry *evictionPoolAlloc(void) {
#define EVICTION_SAMPLES_ARRAY_SIZE 16
void evictionPoolPopulate(dict *sampledict, dict *keydict, struct evictionPoolEntry *pool) {
int j, k, count;
dictEntry *_samples[EVICTION_SAMPLES_ARRAY_SIZE];
dictEntry **samples;
/* Try to use a static buffer: this function is a big hit...
* Note: it was actually measured that this helps. */
if (server.maxmemory_samples <= EVICTION_SAMPLES_ARRAY_SIZE) {
samples = _samples;
} else {
samples = zmalloc(sizeof(samples[0])*server.maxmemory_samples);
}
dictEntry *samples[server.maxmemory_samples];
count = dictGetSomeKeys(sampledict,samples,server.maxmemory_samples);
for (j = 0; j < count; j++) {
@ -175,7 +166,6 @@ void evictionPoolPopulate(dict *sampledict, dict *keydict, struct evictionPoolEn
pool[k].key = sdsdup(key);
pool[k].idle = idle;
}
if (samples != _samples) zfree(samples);
}
int freeMemoryIfNeeded(void) {