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https://issues.apache.org/jira/browse/CASSANDRA-14747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17090760#comment-17090760
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Vinay Chella commented on CASSANDRA-14747:
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The majority of our tests in this ticket were on the CASSANDRA-14503 branch
with the goal of evaluating 4.0 (better latency, more throughput, fewer
threads, fewer context switches, less GC allocation, and faster recovery time)
while all internode settings off (no compression, no encryption, no
coalescing), similar runs and results were recorded in CASSANDRA-15175 while
internode settings on (compression and encryption). However, with
CASSANDRA-15066 being merged, we might have to reevaluate these runs on the
latest trunk/alpha-4.
> Evaluate 200 node, compression=none, encryption=none, coalescing=off
> ---------------------------------------------------------------------
>
> Key: CASSANDRA-14747
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14747
> Project: Cassandra
> Issue Type: Sub-task
> Components: Legacy/Testing
> Reporter: Joey Lynch
> Assignee: Joey Lynch
> Priority: Normal
> Fix For: 4.0-beta
>
> Attachments: 3.0.17-QPS.png, 4.0.1-QPS.png,
> 4.0.11-after-jolynch-tweaks.svg, 4.0.12-after-unconditional-flush.svg,
> 4.0.15-after-sndbuf-fix.svg, 4.0.7-before-my-changes.svg,
> 4.0_errors_showing_heap_pressure.txt,
> 4.0_heap_histogram_showing_many_MessageOuts.txt,
> i-0ed2acd2dfacab7c1-after-looping-fixes.svg,
> trunk_14503_v2_cpuflamegraph.svg, trunk_vs_3.0.17_latency_under_load.png,
> ttop_NettyOutbound-Thread_spinning.txt,
> useast1c-i-0e1ddfe8b2f769060-mutation-flame.svg,
> useast1e-i-08635fa1631601538_flamegraph_96node.svg,
> useast1e-i-08635fa1631601538_ttop_netty_outbound_threads_96nodes,
> useast1e-i-08635fa1631601538_uninlinedcpuflamegraph.0_96node_60sec_profile.svg
>
>
> Tracks evaluating a 200 node cluster with all internode settings off (no
> compression, no encryption, no coalescing).
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