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  1. Couchbase Server
  2. MB-43799

Perf Degradation - Decrease in throughput for COUNTER incr operation by 20%

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Details

    • Bug
    • Resolution: Fixed
    • Critical
    • 7.0.0
    • Cheshire-Cat
    • performance
    • 7.0.0-3701
    • Triaged
    • 1
    • Unknown

    Description

      Functions executed/sec, 1 bucket x 100M x 1KB, 4KV + 1Eventing node, Counter Increment 0% Contention - is seeing the perf degradation

      The regressions seems to be coming from this : http://changelog.build.couchbase.com/?product=couchbase-server&fromVersion=7.0.0&fromBuild=3696&toVersion=7.0.0&toBuild=3701&f_asterixdb=off&f_backup=off&f_build=off&f_cbas-core=off&f_cbbs=off&f_cbft=off&f_cbgt=off&f_couchstore=off&f_eventing=on&f_goxdcr=off&f_indexing=off&f_kv_engine=off&f_magma=off&f_ns_server=off&f_query=off&f_testrunner=off change. We see this degradation only in counter increment non src bkt mutation test.

       

      That change was to fix the memory leak that caused the increase in consumer rss in src bkt mutation cases. But it is seen to regress counter increment performance in the non src bkt test. 

      Attachments

        1. 3696_ops_by_vbid.png
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          James Harrison
        2. 3697_ops_by_vbid.png
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          James Harrison
        3. 5c7885be53720416f33c68c28100bc64.png
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          Dave Rigby
        4. 72c441f8b35b876ee29fcd712a9f3146.png
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        5. 7d953b61958286f86d6bacb30330e47f-1.png
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        7. dae54cb24a10cea20a64ab78ccc9592e.png
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          Dave Rigby
        8. dgm_bgfetch_3696.png
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          James Harrison
        9. dgm_bgfetch_3697.png
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          James Harrison
        10. dgm_bgfetch_rate_3696.png
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          James Harrison
        11. dgm_bgfetch_rate_3697.png
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          James Harrison
        12. dgm_bgfetch_ratio_3696.png
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          James Harrison
        13. dgm_bgfetch_ratio_3697.png
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          James Harrison
        14. dgm_cache_miss_3696.png
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          James Harrison
        15. dgm_cache_miss_3697.png
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          James Harrison
        16. Screenshot 2021-02-01 at 12.20.37.png
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          Dave Rigby
        17. Screenshot 2021-02-01 at 12.24.05.png
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          Dave Rigby
        18. Screenshot 2021-02-10 at 11.31.19.png
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          James Harrison
        19. vbrr_3696.png
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          James Harrison
        20. vbrr_3697.png
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          James Harrison
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            prajwal.kirankumar Prajwal‌ Kiran Kumar‌ (Inactive)
            prajwal.kirankumar Prajwal‌ Kiran Kumar‌ (Inactive)
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            Dates

              Created:
              Updated:
              Resolved:

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