Re: Checkpointing is taking long time

2022-04-18 Thread Raymond Wilson
Your checkpointing is writing ~40k pages to store using 25 seconds. Assuming default 4Kb pages this means writing about 160Mb in 25 seconds, or less than 7Mb/sec. On an SSD. Which seems slow. But... Your SSD volumes are really small, so perhaps you are partitioning a single large SSD device into

Re: Checkpointing is taking long time

2022-04-17 Thread Ilya Korol
1. We have DirectIO disabled : does enabling it impact the performance if enabled? It should increase performance, but its always worth to do some benchmarks before using such features in production. 2. When we disabled throttling, we saw 5x better performance. Struggling load test completed

Re: Checkpointing is taking long time

2022-04-16 Thread Surinder Mehra
Hey thanks for replying. we haven't configured the storage path so by default it should be in the work directory. work, wal, walarchive all three are SSDs. I have the following queries. 1. We have DirectIO disabled : does enabling it impact the performance if enabled? 2. When we disabled

RE: Checkpointing is taking long time

2022-04-16 Thread Ilya Korol
Hi, From my perspective this looks like your physical storage is not fast enough to handle incoming writes. markDirty speed is 2x times faster that checkpointWrite even in the presence of throttling. You've mentioned that ignite work folder stored on SSD, but what about PDS folder