xichen01 commented on PR #5388:
URL: https://github.com/apache/ozone/pull/5388#issuecomment-1748501475
@adoroszlai BTW, I found a huge performance difference (approximately 20
times) between three-replica-bucket and one-replica-bucket in my dev ENV (ozone
all in one, starting a cluster by IDE, default configuration)
Is this difference in performance to be expected?
### three-replica
```java
[root@VM-8-3-centos ~]$ ozone freon ommg --operation CREATE_KEY -n 10000000
--bucket bucket-three-replica -t 30 --size 4096 --duration 60s
-- Timers
----------------------------------------------------------------------
CREATE_KEY
count = 2764
mean rate = 45.86 calls/second
1-minute rate = 43.17 calls/second
5-minute rate = 38.98 calls/second
15-minute rate = 37.96 calls/second
min = 26.76 milliseconds
max = 1765.12 milliseconds
mean = 627.56 milliseconds
stddev = 375.49 milliseconds
median = 605.48 milliseconds
75% <= 946.76 milliseconds
95% <= 1210.53 milliseconds
98% <= 1249.12 milliseconds
99% <= 1276.17 milliseconds
99.9% <= 1716.74 milliseconds
Total execution time (sec): 61
Failures: 0
Successful executions: 2764
[root@VM-8-3-centos ~]$
```
**mean rate about 50**
### one-replica
```java
[root@VM-8-3-centos ~]$ ozone sh bucket create vol1/bucket-one-replica
[root@VM-8-3-centos ~]$ ozone sh bucket set-replication-config -r ONE -t
RATIS vol1/bucket-one-replica
[root@VM-8-3-centos ~]$ ozone freon ommg --operation CREATE_KEY -n 10000000
--bucket bucket-one-replica -t 30 --size 4096 --duration 60s
CREATE_KEY
count = 59422
mean rate = 979.06 calls/second
1-minute rate = 757.65 calls/second
5-minute rate = 361.04 calls/second
15-minute rate = 269.30 calls/second
min = 8.23 milliseconds
max = 815.57 milliseconds
mean = 28.67 milliseconds
stddev = 61.64 milliseconds
median = 17.70 milliseconds
75% <= 24.23 milliseconds
95% <= 60.19 milliseconds
98% <= 105.40 milliseconds
99% <= 246.93 milliseconds
99.9% <= 815.57 milliseconds
Total execution time (sec): 61
Failures: 0
Successful executions: 59422
```
**mean rate about 1000**
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