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  1. Maven Resolver
  2. MRESOLVER-138

MRESOLVER-56 introduces severe performance regression

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.6.0
    • 1.6.1
    • Resolver
    • None

    Description

      As discussed on the dev ML, dantran found out that additional download of SHA-512 and SHA-256 when both aren't there introduces a huge performance penalty because of the HTTP roundtrip. SimpleDigest requires also more time with SHA-512. My personal tests with various setups show at least a 50% toll in resolution time. (Not representative, of course)

      Ant Resolver Tasks:

      master:SHA-512,SHA-256,SHA-1,MD5:central-mirror
       24,20 real        40,09 user         4,11 sys
master:SHA-512,SHA-256,SHA-1,MD5:central-mirror-sha256
       24,67 real        45,04 user         3,89 sys
master:SHA-512,SHA-256,SHA-1,MD5:central-mirror-sha1-md5
       24,37 real        40,02 user         4,20 sys
master:SHA-512,SHA-256:central-mirror
       33,34 real        39,65 user         4,56 sys
master:SHA-512,SHA-256:central-mirror-sha256
       43,42 real        45,75 user         4,93 sys
master:SHA-512,SHA-256:central-mirror-sha1-md5
       44,30 real        46,01 user         5,13 sys
master:SHA-1,MD5:central-mirror
       22,62 real        37,27 user         3,86 sys
master:SHA-1,MD5:central-mirror-sha256
       22,69 real        37,08 user         4,10 sys
master:SHA-1,MD5:central-mirror-sha1-md5
       22,81 real        37,85 user         4,00 sys
master:SHA-512:central-mirror
       32,20 real        33,65 user         4,80 sys
master:SHA-512:central-mirror-sha256
       33,61 real        39,75 user         4,48 sys
master:SHA-512:central-mirror-sha1-md5
       33,39 real        36,00 user         4,12 sys
master:SHA-256:central-mirror
       32,66 real        36,49 user         4,80 sys
master:SHA-256:central-mirror-sha256
       32,35 real        35,41 user         4,44 sys
master:SHA-256:central-mirror-sha1-md5
       33,44 real        37,12 user         4,12 sys
digest-fix:SHA-512,SHA-256,SHA-1,MD5:central-mirror
       24,59 real        44,12 user         4,05 sys
digest-fix:SHA-512,SHA-256,SHA-1,MD5:central-mirror-sha256
       24,69 real        43,62 user         4,27 sys
digest-fix:SHA-512,SHA-256,SHA-1,MD5:central-mirror-sha1-md5
       24,68 real        43,97 user         4,28 sys
digest-fix:SHA-512,SHA-256:central-mirror
       33,53 real        42,76 user         4,35 sys
digest-fix:SHA-512,SHA-256:central-mirror-sha256
       43,16 real        41,90 user         5,12 sys
digest-fix:SHA-512,SHA-256:central-mirror-sha1-md5
       44,00 real        45,75 user         5,24 sys
digest-fix:SHA-1,MD5:central-mirror
       22,47 real        33,67 user         4,02 sys
digest-fix:SHA-1,MD5:central-mirror-sha256
       22,90 real        37,95 user         4,08 sys
digest-fix:SHA-1,MD5:central-mirror-sha1-md5
       22,62 real        33,96 user         4,00 sys
digest-fix:SHA-512:central-mirror
       32,28 real        34,07 user         4,65 sys
digest-fix:SHA-512:central-mirror-sha256
       33,84 real        34,90 user         4,37 sys
digest-fix:SHA-512:central-mirror-sha1-md5
       33,72 real        37,18 user         4,31 sys
digest-fix:SHA-256:central-mirror
       32,36 real        35,70 user         4,39 sys
digest-fix:SHA-256:central-mirror-sha256
       32,51 real        37,18 user         4,57 sys
digest-fix:SHA-256:central-mirror-sha1-md5
       33,36 real        37,88 user         4,50 sys
master:SHA-512,SHA-256,SHA-1,MD5:central-direct
      274,93 real        54,14 user         7,38 sys
master:SHA-512,SHA-256:central-direct
      218,85 real        48,71 user         6,61 sys
master:SHA-1,MD5:central-direct
      158,51 real        42,59 user         6,05 sys
master:SHA-512:central-direct
      163,33 real        43,27 user         5,95 sys
master:SHA-256:central-direct
      167,36 real        41,50 user         6,07 sys
digest-fix:SHA-512,SHA-256,SHA-1,MD5:central-direct
      247,74 real        54,25 user         7,07 sys
digest-fix:SHA-512,SHA-256:central-direct
      204,89 real        47,79 user         6,49 sys
digest-fix:SHA-1,MD5:central-direct
      166,66 real        42,36 user         6,03 sys
digest-fix:SHA-512:central-direct
      164,31 real        38,98 user         6,10 sys
digest-fix:SHA-256:central-direct
      170,77 real        44,77 user         5,79 sys

      as well as Maven 3.7.0-SNAPSHOT:

      master:SHA-512,SHA-256,SHA-1,MD5:central-direct
      271,06 real        65,54 user         7,67 sys
master:SHA-512,SHA-256:central-direct
      202,95 real        60,87 user         6,77 sys
master:SHA-1,MD5:central-direct
      163,64 real        50,00 user         6,85 sys
master:SHA-512:central-direct
      165,11 real        50,17 user         6,25 sys
master:SHA-256:central-direct
      163,97 real        52,24 user         5,81 sys
digest-fix:SHA-512,SHA-256,SHA-1,MD5:central-direct
      268,27 real        64,90 user         7,73 sys
digest-fix:SHA-512,SHA-256:central-direct
      211,50 real        61,39 user         6,76 sys
digest-fix:SHA-1,MD5:central-direct
      165,67 real        52,25 user         6,66 sys
digest-fix:SHA-512:central-direct
      155,26 real        50,90 user         6,45 sys
digest-fix:SHA-256:central-direct
      162,91 real        51,20 user         6,31 sys
master:SHA-512,SHA-256,SHA-1,MD5:central-proxy
       42,47 real        63,41 user         6,46 sys
master:SHA-512,SHA-256:central-proxy
       36,54 real        53,11 user         5,65 sys
master:SHA-1,MD5:central-proxy
       29,60 real        42,90 user         5,18 sys
master:SHA-512:central-proxy
       29,50 real        42,07 user         5,21 sys
master:SHA-256:central-proxy
       30,04 real        43,57 user         5,34 sys
digest-fix:SHA-512,SHA-256,SHA-1,MD5:central-proxy
       42,91 real        62,70 user         6,92 sys
digest-fix:SHA-512,SHA-256:central-proxy
       36,36 real        54,39 user         5,54 sys
digest-fix:SHA-1,MD5:central-proxy
       29,80 real        44,50 user         5,56 sys
digest-fix:SHA-512:central-proxy
       29,53 real        42,57 user         5,23 sys
digest-fix:SHA-256:central-proxy
       30,17 real        43,14 user         5,18 sys

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          is caused by

          Improvement - An improvement or enhancement to an existing feature or task. MRESOLVER-56 Support SHA-256 and SHA-512 as checksums

          • Major - Major loss of function.
          • Closed
          There are no Sub-Tasks for this issue.

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              michael-o Michael Osipov
              michael-o Michael Osipov
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              Dates

                Created:
                Updated:
                Resolved: