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Posted to issues@ignite.apache.org by "Anton Vinogradov (Jira)" <ji...@apache.org> on 2020/09/11 08:50:00 UTC

[jira] [Commented] (IGNITE-13433) Benchmark confirms operation's latency drop decrease on Cellular switch comparing to PME-free switch

    [ https://issues.apache.org/jira/browse/IGNITE-13433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17194104#comment-17194104 ] 

Anton Vinogradov commented on IGNITE-13433:
-------------------------------------------

Results gained on the real environment (12 servers with 16 cores each) with 500 txs prepared on each cell before the switch.

2.8.0 (Pme-free switch)
{code:java}
  "[alive cell C1]": "worst_latency=[553, 21, 18, 14, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6], tx_streamed=14477, measure_duration=29546",
  "[alive cell C2]": "worst_latency=[550, 28, 18, 18, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8], tx_streamed=13924, measure_duration=29820",
  "[broken cell C3]": "worst_latency=[609, 18, 17, 10, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4], tx_streamed=20141, measure_duration=30689"
{code}

master (2.10+)
{code:java}
  "[alive cell C1]": "worst_latency=[88, 28, 16, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6], tx_streamed=11853, measure_duration=23962",
  "[alive cell C2]": "worst_latency=[90, 14, 12, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5], tx_streamed=11748, measure_duration=24090",
  "[broken cell C3]": "worst_latency=[513, 13, 9, 8, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5], tx_streamed=17254, measure_duration=25410"
{code}

As you may see even broken cell switches faster, but alive cell switches less than in 100ms. 

> Benchmark confirms operation's latency drop decrease on Cellular switch comparing to PME-free switch
> ----------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-13433
>                 URL: https://issues.apache.org/jira/browse/IGNITE-13433
>             Project: Ignite
>          Issue Type: Task
>            Reporter: Anton Vinogradov
>            Assignee: Anton Vinogradov
>            Priority: Major
>              Labels: ducktape
>




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