README small improvement by Breus · Pull Request #321 · Breus/json-masker

Breus · 2026-06-12T08:19:14Z

No description provided.

github-actions · 2026-06-12T08:31:20Z

Note

These results are affected by shared workloads on GitHub runners. Use the results only to detect possible regressions, but always rerun on a more stable machine before drawing conclusions!
Regressions/improvements are highlighted when the difference exceeds 3.0%.

Benchmark results

BaselineBenchmark

Method	characters	jsonSize	maskedKeyProbability	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jacksonParseAndMask`	`unicode`	`1kb`	`0.1`	`39,495`	`38,304`	🔴 -3.0%	`58,368.1`	`58,424.1`	⚪ +0.1%
`writeFile`	`unicode`	`1kb`	`0.1`	`5,694`	`4,826`	🔴 -15.2%	`5,920.4`	`5,920.5`	⚪ +0.0%

Full results — BaselineBenchmark

Method	characters	jsonSize	maskedKeyProbability	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`countBytes`	`unicode`	`1kb`	`0.1`	`2,749,771`	`2,761,410`	⚪ +0.4%	`0.0010`	`0.0010`	⚪ +0.0%
`jacksonParseAndMask`	`unicode`	`1kb`	`0.1`	`39,495`	`38,304`	🔴 -3.0%	`58,368.1`	`58,424.1`	⚪ +0.1%
`jacksonParseOnly`	`unicode`	`1kb`	`0.1`	`85,035`	`84,937`	⚪ -0.1%	`17,616.0`	`17,704.0`	⚪ +0.5%
`regexReplace`	`unicode`	`1kb`	`0.1`	`4,107`	`4,147`	⚪ +1.0%	`53,048.6`	`53,048.6`	⚪ -0.0%
`writeFile`	`unicode`	`1kb`	`0.1`	`5,694`	`4,826`	🔴 -15.2%	`5,920.4`	`5,920.5`	⚪ +0.0%

InstanceCreationBenchmark

No significant changes (all within 3.0%).

Full results — InstanceCreationBenchmark

Method	numberOfTargetKeys	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jsonMasker`	`1000`	`1,592`	`1,573`	⚪ -1.2%	`1,637,212`	`1,637,212`	⚪ -0.0%

JsonMaskerBenchmark

Method	characters	jsonPath	jsonSize	maskedKeyProbability	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jsonMaskerBytes`	`unicode`	`false`	`1kb`	`0.1`	`461,044`	`432,079`	🔴 -6.3%	`2,272.0`	`2,272.0`	⚪ +0.0%
`jsonMaskerBytes`	`unicode`	`true`	`1kb`	`0.1`	`420,188`	`447,800`	🟢 +6.6%	`2,024.0`	`2,024.0`	⚪ -0.0%

Full results — JsonMaskerBenchmark

Method	characters	jsonPath	jsonSize	maskedKeyProbability	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jsonMaskerByteArrayStreams`	`unicode`	`false`	`1kb`	`0.1`	`246,988`	`248,960`	⚪ +0.8%	`10,840.0`	`10,840.0`	⚪ +0.0%
`jsonMaskerByteArrayStreams`	`unicode`	`true`	`1kb`	`0.1`	`245,855`	`247,963`	⚪ +0.9%	`12,184.0`	`12,184.0`	⚪ +0.0%
`jsonMaskerBytes`	`unicode`	`false`	`1kb`	`0.1`	`461,044`	`432,079`	🔴 -6.3%	`2,272.0`	`2,272.0`	⚪ +0.0%
`jsonMaskerBytes`	`unicode`	`true`	`1kb`	`0.1`	`420,188`	`447,800`	🟢 +6.6%	`2,024.0`	`2,024.0`	⚪ -0.0%
`jsonMaskerString`	`unicode`	`false`	`1kb`	`0.1`	`235,134`	`236,959`	⚪ +0.8%	`10,176.0`	`10,176.0`	⚪ +0.0%
`jsonMaskerString`	`unicode`	`true`	`1kb`	`0.1`	`217,559`	`211,155`	⚪ -2.9%	`10,944.0`	`10,944.0`	⚪ +0.0%

LargeKeySetInstanceCreationBenchmark

Method	keyLength	numberOfTargetKeys	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jsonMasker`	`100`	`1000`	`135.23`	`130.87`	🔴 -3.2%	`32,372,226`	`32,372,251`	⚪ +0.0%

Full results — LargeKeySetInstanceCreationBenchmark

Method	keyLength	numberOfTargetKeys	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jsonMasker`	`100`	`1000`	`135.23`	`130.87`	🔴 -3.2%	`32,372,226`	`32,372,251`	⚪ +0.0%

StreamTypeBenchmark

Method	jsonSize	streamInputType	streamOutputType	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jsonMaskerStreams`	`1kb`	`ByteArrayStream`	`ByteArrayStream`	`238,513`	`246,863`	🟢 +3.5%	`12,184.0`	`12,184.0`	⚪ +0.0%

Full results — StreamTypeBenchmark

Method	jsonSize	streamInputType	streamOutputType	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`jsonMaskerStreams`	`1kb`	`ByteArrayStream`	`ByteArrayStream`	`238,513`	`246,863`	🟢 +3.5%	`12,184.0`	`12,184.0`	⚪ +0.0%
`jsonMaskerStreams`	`1kb`	`ByteArrayStream`	`FileStream`	`5,046`	`4,917`	⚪ -2.6%	`9,208.5`	`9,208.5`	⚪ +0.0%
`jsonMaskerStreams`	`1kb`	`FileStream`	`ByteArrayStream`	`91,562`	`90,764`	⚪ -0.9%	`12,336.0`	`12,320.0`	⚪ -0.1%
`jsonMaskerStreams`	`1kb`	`FileStream`	`FileStream`	`4,577`	`4,703`	⚪ +2.8%	`9,392.5`	`9,392.5`	⚪ -0.0%

ValueMaskerBenchmark

Method	characters	jsonSize	maskedKeyProbability	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`maskWithRawValueFunction`	`unicode`	`1kb`	`0.1`	`610,385`	`582,097`	🔴 -4.6%	`1,632.0`	`1,632.0`	⚪ +0.0%
`maskWithTextValueFunction`	`unicode`	`1kb`	`0.1`	`535,418`	`513,307`	🔴 -4.1%	`1,776.0`	`1,776.0`	⚪ +0.0%

Full results — ValueMaskerBenchmark

Method	characters	jsonSize	maskedKeyProbability	master (ops/s)	PR (ops/s)	change	master alloc (B/op)	PR alloc (B/op)	alloc change
`maskWithRawValueFunction`	`unicode`	`1kb`	`0.1`	`610,385`	`582,097`	🔴 -4.6%	`1,632.0`	`1,632.0`	⚪ +0.0%
`maskWithStatic`	`unicode`	`1kb`	`0.1`	`653,200`	`658,687`	⚪ +0.8%	`1,272.0`	`1,272.0`	⚪ +0.0%
`maskWithTextValueFunction`	`unicode`	`1kb`	`0.1`	`535,418`	`513,307`	🔴 -4.1%	`1,776.0`	`1,776.0`	⚪ +0.0%

Raw output (PR @ 718a8f5)

Benchmark                                                           (characters)  (jsonPath)  (jsonSize)  (keyLength)  (maskedKeyProbability)  (numberOfTargetKeys)  (streamInputType)  (streamOutputType)   Mode  Cnt         Score       Error   Units
BaselineBenchmark.countBytes                                             unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4   2761409.828 ± 10851.948   ops/s
BaselineBenchmark.jacksonParseAndMask                                    unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4     38304.093 ±   576.484   ops/s
BaselineBenchmark.jacksonParseOnly                                       unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4     84936.776 ±  2270.961   ops/s
BaselineBenchmark.regexReplace                                           unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4      4146.713 ±   231.875   ops/s
BaselineBenchmark.writeFile                                              unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4      4826.097 ±  1310.159   ops/s
InstanceCreationBenchmark.jsonMasker                                         N/A         N/A         N/A          N/A                     N/A                  1000                N/A                 N/A  thrpt    4      1573.224 ±    38.871   ops/s
JsonMaskerBenchmark.jsonMaskerByteArrayStreams                           unicode       false         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    248960.240 ±  7462.847   ops/s
JsonMaskerBenchmark.jsonMaskerByteArrayStreams                           unicode        true         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    247962.688 ±  7935.632   ops/s
JsonMaskerBenchmark.jsonMaskerBytes                                      unicode       false         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    432078.647 ±  5807.887   ops/s
JsonMaskerBenchmark.jsonMaskerBytes                                      unicode        true         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    447799.970 ±  9360.619   ops/s
JsonMaskerBenchmark.jsonMaskerString                                     unicode       false         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    236959.230 ±  2092.470   ops/s
JsonMaskerBenchmark.jsonMaskerString                                     unicode        true         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    211155.235 ±  1550.983   ops/s
LargeKeySetInstanceCreationBenchmark.jsonMasker                              N/A         N/A         N/A          100                     N/A                  1000                N/A                 N/A  thrpt    4       130.867 ±     3.939   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A    ByteArrayStream     ByteArrayStream  thrpt    4    246863.139 ±  4160.505   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A    ByteArrayStream          FileStream  thrpt    4      4916.667 ±   446.929   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A         FileStream     ByteArrayStream  thrpt    4     90764.361 ±  4262.339   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A         FileStream          FileStream  thrpt    4      4703.384 ±  1763.892   ops/s
ValueMaskerBenchmark.maskWithRawValueFunction                            unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    582097.072 ± 11485.316   ops/s
ValueMaskerBenchmark.maskWithStatic                                      unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    658686.520 ± 20104.626   ops/s
ValueMaskerBenchmark.maskWithTextValueFunction                           unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    513306.686 ±  9317.482   ops/s

Raw output (master @ 550a7d4)

Benchmark                                                           (characters)  (jsonPath)  (jsonSize)  (keyLength)  (maskedKeyProbability)  (numberOfTargetKeys)  (streamInputType)  (streamOutputType)   Mode  Cnt         Score       Error   Units
BaselineBenchmark.countBytes                                             unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4   2749771.069 ± 84869.400   ops/s
BaselineBenchmark.jacksonParseAndMask                                    unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4     39494.506 ±   477.600   ops/s
BaselineBenchmark.jacksonParseOnly                                       unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4     85035.309 ±  2480.731   ops/s
BaselineBenchmark.regexReplace                                           unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4      4107.175 ±    54.372   ops/s
BaselineBenchmark.writeFile                                              unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4      5693.765 ±  4292.461   ops/s
InstanceCreationBenchmark.jsonMasker                                         N/A         N/A         N/A          N/A                     N/A                  1000                N/A                 N/A  thrpt    4      1591.732 ±    32.501   ops/s
JsonMaskerBenchmark.jsonMaskerByteArrayStreams                           unicode       false         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    246988.081 ± 29494.622   ops/s
JsonMaskerBenchmark.jsonMaskerByteArrayStreams                           unicode        true         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    245855.153 ±  6496.015   ops/s
JsonMaskerBenchmark.jsonMaskerBytes                                      unicode       false         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    461044.481 ±  5176.755   ops/s
JsonMaskerBenchmark.jsonMaskerBytes                                      unicode        true         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    420187.667 ±  7394.723   ops/s
JsonMaskerBenchmark.jsonMaskerString                                     unicode       false         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    235133.909 ±  8477.467   ops/s
JsonMaskerBenchmark.jsonMaskerString                                     unicode        true         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    217559.470 ±  2055.316   ops/s
LargeKeySetInstanceCreationBenchmark.jsonMasker                              N/A         N/A         N/A          100                     N/A                  1000                N/A                 N/A  thrpt    4       135.228 ±     4.034   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A    ByteArrayStream     ByteArrayStream  thrpt    4    238513.349 ±  2723.078   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A    ByteArrayStream          FileStream  thrpt    4      5045.584 ±   542.745   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A         FileStream     ByteArrayStream  thrpt    4     91561.687 ±   760.263   ops/s
StreamTypeBenchmark.jsonMaskerStreams                                        N/A         N/A         1kb          N/A                     N/A                   N/A         FileStream          FileStream  thrpt    4      4576.895 ±   677.800   ops/s
ValueMaskerBenchmark.maskWithRawValueFunction                            unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    610385.150 ±  9088.567   ops/s
ValueMaskerBenchmark.maskWithStatic                                      unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    653199.880 ± 15088.976   ops/s
ValueMaskerBenchmark.maskWithTextValueFunction                           unicode         N/A         1kb          N/A                     0.1                   N/A                N/A                 N/A  thrpt    4    535417.784 ±  5087.020   ops/s

README small improvement

718a8f5

Breus enabled auto-merge (squash) June 12, 2026 08:19

Breus closed this Jun 12, 2026

auto-merge was automatically disabled June 12, 2026 08:39
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README small improvement#321

README small improvement#321
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Benchmark results

BaselineBenchmark

InstanceCreationBenchmark

JsonMaskerBenchmark

LargeKeySetInstanceCreationBenchmark

StreamTypeBenchmark

ValueMaskerBenchmark

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