Couchbase Server

reb large scale slower than 1.8.1

Details

  • Type: Bug Bug
  • Status: Resolved Resolved
  • Priority: Blocker Blocker
  • Resolution: Fixed
  • Affects Version/s: 2.0
  • Fix Version/s: 2.0.1
  • Component/s: performance
  • Security Level: Public
  • Labels:
    None
  • Environment:
    terra, ec2

Description

see https://docs.google.com/spreadsheet/ccc?key=0AgLUessE73UXdHRRYnlGaTIyQ0VWa3NWTlVqeDZwRFE#gid=1


reb-in results are not consistent across envs. On terra: 2.0 is slower in terms of medium scale test (reb-1), while slower on larger scale (reb-large-2) tests. But on ec2, results are reversed.

Activity

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Farshid Ghods added a comment - - edited
there are improvements that Mike is working on in fusher that can help with this.
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Farshid Ghods added a comment - - edited there are improvements that Mike is working on in fusher that can help with this.
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Aleksey Kondratenko added a comment -
Most likely cause is those "fsyncs" we're waiting for when consistent views are enabled. In MB-7523 we've found a very promising treatment. Most likely can be closed as a duplicate.
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Aleksey Kondratenko added a comment - Most likely cause is those "fsyncs" we're waiting for when consistent views are enabled. In MB-7523 we've found a very promising treatment. Most likely can be closed as a duplicate.
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Jin Lim added a comment -
Both MB-7519 & MB-7518 should boost ep engine performance while persisting and fetching items on and from disks. Per Alek's comment above, we may still mark this as duplicate of MB-7523 for it alleviating the slowness observed in this test case.
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Jin Lim added a comment - Both MB-7519 & MB-7518 should boost ep engine performance while persisting and fetching items on and from disks. Per Alek's comment above, we may still mark this as duplicate of MB-7523 for it alleviating the slowness observed in this test case.
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Jin Lim added a comment -
Ronnie, MB-7523 has been merged to 2.0.1 as of Jan. 18th. When you have a chance please confirm if with the latest build of 2.0.1 your above tests can pass now (pass performance guidelines) . If not please assign this back to Jin. Thanks.
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Jin Lim added a comment - Ronnie, MB-7523 has been merged to 2.0.1 as of Jan. 18th. When you have a chance please confirm if with the latest build of 2.0.1 your above tests can pass now (pass performance guidelines) . If not please assign this back to Jin. Thanks.
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Ronnie Sun added a comment -
we are not seeing this issue on 2.0.1, while there are regressions between 2.0.x builds
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Ronnie Sun added a comment - we are not seeing this issue on 2.0.1, while there are regressions between 2.0.x builds

People

  • Assignee:
    Ronnie Sun
    Reporter:
    Ronnie Sun
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Dates

  • Created:
    Updated:
    Resolved: