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This commit is contained in:
Alex Cope 2023-06-28 17:31:40 -07:00
parent 6efe344587
commit 4e22068f2f
3 changed files with 6 additions and 3 deletions
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1
src/config.cpp
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@ -2953,6 +2953,7 @@ standardConfig configs[] = {
createBoolConfig("soft-shutdown", NULL, MODIFIABLE_CONFIG, g_pserver->config_soft_shutdown, 0, NULL, NULL),
createBoolConfig("flash-disable-key-cache", NULL, MODIFIABLE_CONFIG, g_pserver->flash_disable_key_cache, 0, NULL, NULL),
createSizeTConfig("semi-ordered-set-bucket-size", NULL, MODIFIABLE_CONFIG, 0, 1024, g_semiOrderedSetTargetBucketSize, 0, INTEGER_CONFIG, NULL, NULL),
createIntConfig("force-eviction-percent", NULL, MODIFIABLE_CONFIG, 0, 100, g_pserver->force_eviction_percent, 0, INTEGER_CONFIG, NULL, NULL),
#ifdef USE_OPENSSL
createIntConfig("tls-port", NULL, MODIFIABLE_CONFIG, 0, 65535, g_pserver->tls_port, 0, INTEGER_CONFIG, NULL, updateTLSPort), /* TCP port. */

7
src/evict.cpp
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@ -425,10 +425,11 @@ int getMaxmemoryState(size_t *total, size_t *logical, size_t *tofree, float *lev
if (g_pserver->FRdbSaveInProgress())
maxmemory = static_cast<size_t>(maxmemory*1.2);
/* If there is less than 10% free system memory, force eviction */
/* If there is less than a configurable percent of free system memory, force eviction */
bool mem_rss_max_exceeded;
if (g_pserver->cron_malloc_stats.sys_total) {
size_t mem_rss_max = static_cast<size_t>(g_pserver->cron_malloc_stats.sys_total * 0.9);
if (g_pserver->force_eviction_percent && g_pserver->cron_malloc_stats.sys_total) {
float sys_total_ratio = (float)(100 - g_pserver->force_eviction_percent)/100;
size_t mem_rss_max = static_cast<size_t>(g_pserver->cron_malloc_stats.sys_total * sys_total_ratio);
mem_rss_max_exceeded = g_pserver->cron_malloc_stats.process_rss > mem_rss_max;
if (mem_rss_max_exceeded) {
/* This will always set maxmemory < mem_reported */

1
src/server.h
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@ -2571,6 +2571,7 @@ struct redisServer {
int maxmemory_policy; /* Policy for key eviction */
int maxmemory_samples; /* Precision of random sampling */
int maxmemory_eviction_tenacity;/* Aggressiveness of eviction processing */
int force_eviction_percent; /* Force eviction when this percent of system memory is remaining */
int lfu_log_factor; /* LFU logarithmic counter factor. */
int lfu_decay_time; /* LFU counter decay factor. */
long long proto_max_bulk_len; /* Protocol bulk length maximum size. */