diff options
author | antirez <antirez@gmail.com> | 2018-04-09 17:20:36 +0200 |
---|---|---|
committer | antirez <antirez@gmail.com> | 2018-04-09 17:20:36 +0200 |
commit | 6888c1a10d085365ce32e9b09f9fd8d54672e1e7 (patch) | |
tree | 9c35836289a09f6fed1ab2190737bcccc98451cb /src/evict.c | |
parent | 9a0dbbb594f74e27c9d8f550c494501b0196aed6 (diff) | |
download | redis-6888c1a10d085365ce32e9b09f9fd8d54672e1e7.tar.gz |
freeMemoryIfNeeded() lacked a top comment.
Diffstat (limited to 'src/evict.c')
-rw-r--r-- | src/evict.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/evict.c b/src/evict.c index bf485ddc5..063cf03d1 100644 --- a/src/evict.c +++ b/src/evict.c @@ -369,6 +369,15 @@ size_t freeMemoryGetNotCountedMemory(void) { return overhead; } +/* This function is periodically called to see if there is memory to free + * according to the current "maxmemory" settings. In case we are over the + * memory limit, the function will try to free some memory to return back + * under the limit. + * + * The function returns C_OK if we are under the memory limit or if we + * were over the limit, but the attempt to free memory was successful. + * Otehrwise if we are over the memory limit, but not enough memory + * was freed to return back under the limit, the function returns C_ERR. */ int freeMemoryIfNeeded(void) { size_t mem_reported, mem_used, mem_tofree, mem_freed; mstime_t latency, eviction_latency; |