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Add lfu support for DEBUG OBJECT command, added lfu_freq and lfu_access_time_minutes fields (#479)

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For `debug object` command, we use `val->lru` but ignore the `lfu` mode.  
So in `lfu` mode, `debug object` would return meaningless `lru` descriptions. 

Added two new fields lfu_freq and lfu_access_time_minutes.

Signed-off-by: jiangyujie.jyj <yjjiang1996@163.com>
Co-authored-by: Binbin <binloveplay1314@qq.com>
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DarrenJiang13 2024-08-16 17:49:46 +08:00 committed by GitHub
parent fc9f291033
commit adf53c212b
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src/debug.c
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@ -658,7 +658,9 @@ void debugCommand(client *c) {
sds s = sdsempty();
s = sdscatprintf(s, "Value at:%p refcount:%d encoding:%s", (void *)val, val->refcount, strenc);
if (!fast) s = sdscatprintf(s, " serializedlength:%zu", rdbSavedObjectLen(val, c->argv[2], c->db->id));
/* Either lru or lfu field could work correctly which depends on server.maxmemory_policy. */
s = sdscatprintf(s, " lru:%d lru_seconds_idle:%llu", val->lru, estimateObjectIdleTime(val) / 1000);
s = sdscatprintf(s, " lfu_freq:%lu lfu_access_time_minutes:%u", LFUDecrAndReturn(val), val->lru >> 8);
s = sdscatprintf(s, "%s", extra);
addReplyStatusLength(c, s, sdslen(s));
sdsfree(s);