TPS doesn't look quite as good:
8.2 TPS:
8.3 TPS:
...but overall latency is better (still really high spikes :/ ):
8.2 Latency:
8.3 Latency:
Here's the cool beans data:
* With PG 8.3, # of transactions that return slow is less:
PostgreSQL 8.2=# select count(*) from timing where latency > 15;
count | 138835
PostgreSQL 8.3=# select count(*) from timing where latency > 15;
count | 132862
* With PG 8.3, of the slow transactions, a lot less of them are slowed down as significantly, and most return in a lot more tolerable timeframe:
8.2=# select count(*) from timing where latency >= 200;
count | 967
8.2=# select count(*) from timing where latency between 100 and 199;
count | 2490
8.2=# select count(*) from timing where latency between 30 and 99;
count | 2599
8.2=# select count(*) from timing where latency between 20 and 29;
count | 20068
8.3=# select count(*) from timing where latency >= 200;
count | 349
8.3=# select count(*) from timing where latency between 100 and 199;
count | 879
8.3=# select count(*) from timing where latency between 30 and 99;
count | 3976
8.3=# select count(*) from timing where latency between 20 and 29;
count | 22863