UUID.fromString improvements #478

plokhotnyuk · 2020-02-22T07:18:25Z

Bellow are results of benchmarks on Core i7 7700HQ.

JDK 15

[info] REMEMBER: The numbers below are just data. To gain reusable insights, you need to follow up on
[info] why the numbers are the way they are. Use profilers (see -prof, -lprof), design factorial
[info] experiments, perform baseline and negative tests that provide experimental control, make sure
[info] the benchmarking environment is safe on JVM/OS/HW level, ask for reviews from the domain experts.
[info] Do not assume the numbers tell you what you want them to tell.
[info] Benchmark                                           (size)   Mode  Cnt        Score     Error  Units
[info] ArrayOfUUIDsReading.javaCopy                          1000  thrpt    5  1566340.140 ± 502.992  ops/s
[info] ArrayOfUUIDsReading.javaCopy:CPI                      1000  thrpt             0.255             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-dcache-load-misses    1000  thrpt             1.225             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-dcache-loads          1000  thrpt          1018.986             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-dcache-stores         1000  thrpt          1991.333             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-icache-load-misses    1000  thrpt             0.125             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-load-misses          1000  thrpt             0.077             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-loads                1000  thrpt             0.133             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-store-misses         1000  thrpt             0.001             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-stores               1000  thrpt             0.009             #/op
[info] ArrayOfUUIDsReading.javaCopy:branch-misses            1000  thrpt             1.173             #/op
[info] ArrayOfUUIDsReading.javaCopy:branches                 1000  thrpt           272.213             #/op
[info] ArrayOfUUIDsReading.javaCopy:cycles                   1000  thrpt          2168.260             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-load-misses         1000  thrpt             0.006             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-loads               1000  thrpt          1016.183             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-store-misses        1000  thrpt             0.001             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-stores              1000  thrpt          1987.329             #/op
[info] ArrayOfUUIDsReading.javaCopy:iTLB-load-misses         1000  thrpt             0.001             #/op
[info] ArrayOfUUIDsReading.javaCopy:iTLB-loads               1000  thrpt             0.006             #/op
[info] ArrayOfUUIDsReading.javaCopy:instructions             1000  thrpt          8498.627             #/op
[info] ArrayOfUUIDsReading.javaFast                          1000  thrpt    5    25947.447 ±  96.424  ops/s
[info] ArrayOfUUIDsReading.javaFast:CPI                      1000  thrpt             0.290             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-dcache-load-misses    1000  thrpt          1900.055             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-dcache-loads          1000  thrpt         99377.902             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-dcache-stores         1000  thrpt         23182.381             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-icache-load-misses    1000  thrpt            35.205             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-load-misses          1000  thrpt            14.328             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-loads                1000  thrpt            27.819             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-store-misses         1000  thrpt            17.921             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-stores               1000  thrpt            55.201             #/op
[info] ArrayOfUUIDsReading.javaFast:branch-misses            1000  thrpt             4.053             #/op
[info] ArrayOfUUIDsReading.javaFast:branches                 1000  thrpt         90352.742             #/op
[info] ArrayOfUUIDsReading.javaFast:cycles                   1000  thrpt        131195.580             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-load-misses         1000  thrpt             7.910             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-loads               1000  thrpt         99799.245             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-store-misses        1000  thrpt             0.047             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-stores              1000  thrpt         23367.313             #/op
[info] ArrayOfUUIDsReading.javaFast:iTLB-load-misses         1000  thrpt             0.099             #/op
[info] ArrayOfUUIDsReading.javaFast:iTLB-loads               1000  thrpt             0.254             #/op
[info] ArrayOfUUIDsReading.javaFast:instructions             1000  thrpt        452592.770             #/op
[info] ArrayOfUUIDsReading.javaOrig                          1000  thrpt    5     9324.637 ±  76.135  ops/s
[info] ArrayOfUUIDsReading.javaOrig:CPI                      1000  thrpt             0.288             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-dcache-load-misses    1000  thrpt          2025.178             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-dcache-loads          1000  thrpt        241176.340             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-dcache-stores         1000  thrpt         61482.397             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-icache-load-misses    1000  thrpt            79.012             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-load-misses          1000  thrpt            20.031             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-loads                1000  thrpt            55.923             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-store-misses         1000  thrpt            31.936             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-stores               1000  thrpt            89.111             #/op
[info] ArrayOfUUIDsReading.javaOrig:branch-misses            1000  thrpt            10.249             #/op
[info] ArrayOfUUIDsReading.javaOrig:branches                 1000  thrpt        249536.874             #/op
[info] ArrayOfUUIDsReading.javaOrig:cycles                   1000  thrpt        364721.205             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-load-misses         1000  thrpt             9.378             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-loads               1000  thrpt        240166.748             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-store-misses        1000  thrpt             0.112             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-stores              1000  thrpt         62141.889             #/op
[info] ArrayOfUUIDsReading.javaOrig:iTLB-load-misses         1000  thrpt             0.883             #/op
[info] ArrayOfUUIDsReading.javaOrig:iTLB-loads               1000  thrpt             1.925             #/op
[info] ArrayOfUUIDsReading.javaOrig:instructions             1000  thrpt       1265057.458             #/op

GraalVM CE 20.1-dev Java 11 with -Dgraal.UseBranchesWithin32ByteBoundary=true

[info] REMEMBER: The numbers below are just data. To gain reusable insights, you need to follow up on
[info] why the numbers are the way they are. Use profilers (see -prof, -lprof), design factorial
[info] experiments, perform baseline and negative tests that provide experimental control, make sure
[info] the benchmarking environment is safe on JVM/OS/HW level, ask for reviews from the domain experts.
[info] Do not assume the numbers tell you what you want them to tell.
[info] Benchmark                                           (size)   Mode  Cnt        Score     Error  Units
[info] ArrayOfUUIDsReading.javaCopy                          1000  thrpt    5  1338953.694 ± 345.888  ops/s
[info] ArrayOfUUIDsReading.javaCopy:CPI                      1000  thrpt             0.213             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-dcache-load-misses    1000  thrpt             0.739             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-dcache-loads          1000  thrpt          1029.316             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-dcache-stores         1000  thrpt          2015.946             #/op
[info] ArrayOfUUIDsReading.javaCopy:L1-icache-load-misses    1000  thrpt             0.064             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-load-misses          1000  thrpt             0.116             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-loads                1000  thrpt             0.159             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-store-misses         1000  thrpt             0.005             #/op
[info] ArrayOfUUIDsReading.javaCopy:LLC-stores               1000  thrpt             0.072             #/op
[info] ArrayOfUUIDsReading.javaCopy:branch-misses            1000  thrpt             1.155             #/op
[info] ArrayOfUUIDsReading.javaCopy:branches                 1000  thrpt          2997.273             #/op
[info] ArrayOfUUIDsReading.javaCopy:cycles                   1000  thrpt          2564.171             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-load-misses         1000  thrpt             0.002             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-loads               1000  thrpt          1031.945             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-store-misses        1000  thrpt            ≈ 10⁻⁴             #/op
[info] ArrayOfUUIDsReading.javaCopy:dTLB-stores              1000  thrpt          2004.193             #/op
[info] ArrayOfUUIDsReading.javaCopy:iTLB-load-misses         1000  thrpt            ≈ 10⁻⁴             #/op
[info] ArrayOfUUIDsReading.javaCopy:instructions             1000  thrpt         12032.364             #/op
[info] ArrayOfUUIDsReading.javaFast                          1000  thrpt    5    34158.198 ± 345.920  ops/s
[info] ArrayOfUUIDsReading.javaFast:CPI                      1000  thrpt             0.237             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-dcache-load-misses    1000  thrpt          1899.787             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-dcache-loads          1000  thrpt        119133.840             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-dcache-stores         1000  thrpt         46048.208             #/op
[info] ArrayOfUUIDsReading.javaFast:L1-icache-load-misses    1000  thrpt             9.170             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-load-misses          1000  thrpt            11.883             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-loads                1000  thrpt            22.172             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-store-misses         1000  thrpt            28.462             #/op
[info] ArrayOfUUIDsReading.javaFast:LLC-stores               1000  thrpt            71.982             #/op
[info] ArrayOfUUIDsReading.javaFast:branch-misses            1000  thrpt             5.314             #/op
[info] ArrayOfUUIDsReading.javaFast:branches                 1000  thrpt         44432.540             #/op
[info] ArrayOfUUIDsReading.javaFast:cycles                   1000  thrpt        100548.367             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-load-misses         1000  thrpt             8.236             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-loads               1000  thrpt        118949.122             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-store-misses        1000  thrpt             0.064             #/op
[info] ArrayOfUUIDsReading.javaFast:dTLB-stores              1000  thrpt         46239.626             #/op
[info] ArrayOfUUIDsReading.javaFast:iTLB-load-misses         1000  thrpt             0.212             #/op
[info] ArrayOfUUIDsReading.javaFast:iTLB-loads               1000  thrpt             0.546             #/op
[info] ArrayOfUUIDsReading.javaFast:instructions             1000  thrpt        423657.440             #/op
[info] ArrayOfUUIDsReading.javaOrig                          1000  thrpt    5    12801.416 ± 430.552  ops/s
[info] ArrayOfUUIDsReading.javaOrig:CPI                      1000  thrpt             0.228             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-dcache-load-misses    1000  thrpt          1989.368             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-dcache-loads          1000  thrpt        135610.330             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-dcache-stores         1000  thrpt         43292.899             #/op
[info] ArrayOfUUIDsReading.javaOrig:L1-icache-load-misses    1000  thrpt            52.342             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-load-misses          1000  thrpt            13.719             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-loads                1000  thrpt            23.901             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-store-misses         1000  thrpt            16.356             #/op
[info] ArrayOfUUIDsReading.javaOrig:LLC-stores               1000  thrpt            55.335             #/op
[info] ArrayOfUUIDsReading.javaOrig:branch-misses            1000  thrpt            20.082             #/op
[info] ArrayOfUUIDsReading.javaOrig:branches                 1000  thrpt        279228.754             #/op
[info] ArrayOfUUIDsReading.javaOrig:cycles                   1000  thrpt        268660.568             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-load-misses         1000  thrpt             8.241             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-loads               1000  thrpt        135119.651             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-store-misses        1000  thrpt             0.309             #/op
[info] ArrayOfUUIDsReading.javaOrig:dTLB-stores              1000  thrpt         43326.363             #/op
[info] ArrayOfUUIDsReading.javaOrig:iTLB-load-misses         1000  thrpt             0.415             #/op
[info] ArrayOfUUIDsReading.javaOrig:iTLB-loads               1000  thrpt             1.514             #/op
[info] ArrayOfUUIDsReading.javaOrig:instructions             1000  thrpt       1180127.443             #/op

codecov · 2020-02-22T07:33:07Z

Codecov Report

Merging #478 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##            master     #478      +/-   ##
===========================================
- Coverage   100.00%   99.98%   -0.02%     
===========================================
  Files          187      187              
  Lines         5643     5716      +73     
  Branches       531      514      -17     
===========================================
+ Hits          5643     5715      +72     
- Misses           0        1       +1

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3deab5c...3872cff. Read the comment docs.

plokhotnyuk mentioned this pull request Feb 22, 2020

UUID.fromString improvement to be more efficient when parsing 36-byte valid values openjdk/jdk#4

Closed

plokhotnyuk force-pushed the uuid-fromstring-improvements branch from 5088e0f to 97c82ea Compare February 22, 2020 13:35

UUID.fromString improvements

3872cff

plokhotnyuk force-pushed the uuid-fromstring-improvements branch from 97c82ea to 3872cff Compare February 22, 2020 14:01

plokhotnyuk closed this Feb 23, 2020

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Uh oh!

UUID.fromString improvements #478

UUID.fromString improvements #478

Uh oh!

plokhotnyuk commented Feb 22, 2020 •

edited

Loading

Uh oh!

codecov bot commented Feb 22, 2020 •

edited

Loading

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

Uh oh!

UUID.fromString improvements #478

UUID.fromString improvements #478

Uh oh!

Conversation

plokhotnyuk commented Feb 22, 2020 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

JDK 15

GraalVM CE 20.1-dev Java 11 with -Dgraal.UseBranchesWithin32ByteBoundary=true

Uh oh!

codecov bot commented Feb 22, 2020 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Codecov Report

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

plokhotnyuk commented Feb 22, 2020 •

edited

Loading

codecov bot commented Feb 22, 2020 •

edited

Loading