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https://issues.apache.org/jira/browse/CASSANDRA-20367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17933024#comment-17933024
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Stefan Miklosovic commented on CASSANDRA-20367:
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What I see locally is this:
{noformat}
zstd 1.5.7 16 level 3
Op rate : 142,168 op/s [WRITE: 142,168 op/s]
Partition rate : 142,168 pk/s [WRITE: 142,168 pk/s]
Row rate : 142,168 row/s [WRITE: 142,168 row/s]
Latency mean : 0.7 ms [WRITE: 0.7 ms]
Latency median : 0.5 ms [WRITE: 0.5 ms]
Latency 95th percentile : 1.2 ms [WRITE: 1.2 ms]
Latency 99th percentile : 2.3 ms [WRITE: 2.3 ms]
Latency 99.9th percentile : 20.3 ms [WRITE: 20.3 ms]
Latency max : 60.4 ms [WRITE: 60.4 ms]
Total partitions : 10,000,000 [WRITE: 10,000,000]
Total errors : 0 [WRITE: 0]
Total GC count : 305
Total GC memory : 63.806 GiB
Total GC time : 5.7 seconds
Avg GC time : 18.8 ms
StdDev GC time : 3.2 ms
Total operation time : 00:01:10
zstd 1.5.5 chunk length 16 level 3
Results:
Op rate : 129,782 op/s [WRITE: 129,782 op/s]
Partition rate : 129,782 pk/s [WRITE: 129,782 pk/s]
Row rate : 129,782 row/s [WRITE: 129,782 row/s]
Latency mean : 0.8 ms [WRITE: 0.8 ms]
Latency median : 0.6 ms [WRITE: 0.6 ms]
Latency 95th percentile : 1.4 ms [WRITE: 1.4 ms]
Latency 99th percentile : 3.3 ms [WRITE: 3.3 ms]
Latency 99.9th percentile : 17.7 ms [WRITE: 17.7 ms]
Latency max : 193.2 ms [WRITE: 193.2 ms]
Total partitions : 10,000,000 [WRITE: 10,000,000]
Total errors : 0 [WRITE: 0]
Total GC count : 392
Total GC memory : 84.635 GiB
Total GC time : 5.9 seconds
Avg GC time : 14.9 ms
StdDev GC time : 10.9 ms
Total operation time : 00:01:17
{noformat}
{noformat}
tools/bin/cassandra-stress write n=10M no-warmup -rate threads=100 -mode
native cql3 -schema keyspace="stressexample" compression="ZstdCompressor"
{noformat}
> Update Zstd to 1.5.7
> --------------------
>
> Key: CASSANDRA-20367
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20367
> Project: Apache Cassandra
> Issue Type: Task
> Components: Feature/Compression
> Reporter: Stefan Miklosovic
> Assignee: Stefan Miklosovic
> Priority: Normal
> Fix For: 4.0.x, 4.1.x, 5.0.x, 5.x
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> We are currently on Zstd 1.5.5 in trunk. There is Zstd 1.5.7 out.
> According to this post (1), there are nice performance improvements in range
> of 10 - 20 % across various block sizes.
> (1) https://github.com/facebook/zstd/releases/tag/v1.5.7
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