Quoting vitalif@xxxxxxxxxx (vitalif@xxxxxxxxxx):
> SSD (block.db) partition contains object metadata in RocksDB so it probably
> loads the metadata before modifying objects (if it's not in cache yet). Also
> it sometimes performs compaction which also results in disk reads and
> writes. There are other things going on that I'm not completely aware of.
> There's the RBD object map... Maybe there are some locks that come into
> action when you parallel writes...
>
> There's a config option to enable RocksDB performance counters. You can have
> a look into it.
Do you mean more info than:
"rocksdb": {
"rocksdb_write_wal_time": {
"rocksdb_write_memtable_time": {
"rocksdb_write_delay_time": {
"rocksdb_write_pre_and_post_time": {
I see a config option "rocksdb_perf", which is "false" (default config). Should this be
changed to "true" to enable more RocksDB metrics?
Thanks,
Stefan
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