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Add quicklist info to DEBUG OBJECT

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Added field 'ql_nodes' and 'ql_avg_per_node'.

ql_nodes is the number of quicklist nodes in the quicklist.
ql_avg_node is the average fill level in each quicklist node. (LLEN / QL_NODES)

Sample output:
127.0.0.1:6379> DEBUG object b
Value at:0x7fa42bf2fed0 refcount:1 encoding:quicklist serializedlength:18489 lru:8983768 lru_seconds_idle:3 ql_nodes:430 ql_avg_per_node:511.73
127.0.0.1:6379> llen b
(integer) 220044
This commit is contained in:
Matt Stancliff 2014-12-10 22:54:19 -05:00
parent 8d7021892e
commit 5127e39980
1 changed files with 14 additions and 2 deletions
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16
src/debug.c
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@ -301,13 +301,25 @@ void debugCommand(redisClient *c) {
val = dictGetVal(de); val = dictGetVal(de);
strenc = strEncoding(val->encoding); strenc = strEncoding(val->encoding);
char extra[128] = {0};
if (val->encoding == REDIS_ENCODING_QUICKLIST) {
char *nextra = extra;
int remaining = sizeof(extra);
quicklist *ql = val->ptr;
double avg = (double)ql->count/ql->len;
int used = snprintf(nextra, remaining, " ql_nodes:%lu", ql->len);
nextra += used;
remaining -= used;
snprintf(nextra, remaining, " ql_avg_node:%.2f", avg);
}
addReplyStatusFormat(c, addReplyStatusFormat(c,
"Value at:%p refcount:%d " "Value at:%p refcount:%d "
"encoding:%s serializedlength:%lld " "encoding:%s serializedlength:%lld "
"lru:%d lru_seconds_idle:%llu", "lru:%d lru_seconds_idle:%llu%s",
(void*)val, val->refcount, (void*)val, val->refcount,
strenc, (long long) rdbSavedObjectLen(val), strenc, (long long) rdbSavedObjectLen(val),
val->lru, estimateObjectIdleTime(val)/1000); val->lru, estimateObjectIdleTime(val)/1000, extra);
} else if (!strcasecmp(c->argv[1]->ptr,"sdslen") && c->argc == 3) { } else if (!strcasecmp(c->argv[1]->ptr,"sdslen") && c->argc == 3) {
dictEntry *de; dictEntry *de;
robj *val; robj *val;