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Micro optimization in Tag Cache

Browse Source 
Removed defer from the simple Tag Cache lock & unlock and reduced
execution time for even single field validation by almost 100ns
from 254ns/op to 163ns/op .. Not badd for such a simple modification
and this effect ripples throughout struct validation.

```go
$ go test -cpu=4 -bench=. -benchmem=true
PASS
BenchmarkFieldSuccess-4                            	10000000 163 ns/op	       0 B/op	       0 allocs/op
BenchmarkFieldFailure-4                            	 2000000 673 ns/op	     400 B/op	       4 allocs/op
BenchmarkFieldDiveSuccess-4                        	  500000 3019 ns/op	     480 B/op	      27 allocs/op
BenchmarkFieldDiveFailure-4                        	  500000 3553 ns/op	     880 B/op	      31 allocs/op
BenchmarkFieldCustomTypeSuccess-4                  	 5000000 347 ns/op	      32 B/op	       2 allocs/op
BenchmarkFieldCustomTypeFailure-4                  	 2000000 645 ns/op	     400 B/op	       4 allocs/op
BenchmarkFieldOrTagSuccess-4                       	 1000000 1177 ns/op	      16 B/op	       1 allocs/op
BenchmarkFieldOrTagFailure-4                       	 1000000 1093 ns/op	     432 B/op	       6 allocs/op
BenchmarkStructLevelValidationSuccess-4            	 2000000 702 ns/op	     160 B/op	       6 allocs/op
BenchmarkStructLevelValidationFailure-4            	 1000000 1279 ns/op	     592 B/op	      11 allocs/op
BenchmarkStructSimpleCustomTypeSuccess-4           	 1000000 1010 ns/op	      80 B/op	       5 allocs/op
BenchmarkStructSimpleCustomTypeFailure-4           	 1000000 1544 ns/op	     624 B/op	      11 allocs/op
BenchmarkStructPartialSuccess-4                    	 1000000 1249 ns/op	     400 B/op	      11 allocs/op
BenchmarkStructPartialFailure-4                    	 1000000 1797 ns/op	     816 B/op	      16 allocs/op
BenchmarkStructExceptSuccess-4                     	 2000000 927 ns/op	     368 B/op	       9 allocs/op
BenchmarkStructExceptFailure-4                     	 1000000 1259 ns/op	     400 B/op	      11 allocs/op
BenchmarkStructSimpleCrossFieldSuccess-4           	 1000000 1076 ns/op	     128 B/op	       6 allocs/op
BenchmarkStructSimpleCrossFieldFailure-4           	 1000000 1623 ns/op	     560 B/op	      11 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldSuccess-4	 1000000 1582 ns/op	     176 B/op	       9 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldFailure-4	 1000000 2139 ns/op	     608 B/op	      14 allocs/op
BenchmarkStructSimpleSuccess-4                     	 1000000 1040 ns/op	      48 B/op	       3 allocs/op
BenchmarkStructSimpleFailure-4                     	 1000000 1683 ns/op	     624 B/op	      11 allocs/op
BenchmarkStructSimpleSuccessParallel-4             	 5000000 356 ns/op	      48 B/op	       3 allocs/op
BenchmarkStructSimpleFailureParallel-4             	 2000000 831 ns/op	     624 B/op	      11 allocs/op
BenchmarkStructComplexSuccess-4                    	  200000 6738 ns/op	     512 B/op	      30 allocs/op
BenchmarkStructComplexFailure-4                    	  200000 11387 ns/op	    3415 B/op	      72 allocs/op
BenchmarkStructComplexSuccessParallel-4            	  500000 2330 ns/op	     512 B/op	      30 allocs/op
BenchmarkStructComplexFailureParallel-4            	  300000 4857 ns/op	    3416 B/op	      72 allocs/op
```

```go
$ go test -cpu=4 -bench=. -benchmem=true
PASS
BenchmarkFieldSuccess-4                            	 5000000 254 ns/op	       0 B/op	       0 allocs/op
BenchmarkFieldFailure-4                            	 2000000 779 ns/op	     400 B/op	       4 allocs/op
BenchmarkFieldDiveSuccess-4                        	  500000 3451 ns/op	     480 B/op	      27 allocs/op
BenchmarkFieldDiveFailure-4                        	  300000 3954 ns/op	     880 B/op	      31 allocs/op
BenchmarkFieldCustomTypeSuccess-4                  	 3000000 451 ns/op	      32 B/op	       2 allocs/op
BenchmarkFieldCustomTypeFailure-4                  	 2000000 751 ns/op	     400 B/op	       4 allocs/op
BenchmarkFieldOrTagSuccess-4                       	 1000000 1312 ns/op	      16 B/op	       1 allocs/op
BenchmarkFieldOrTagFailure-4                       	 1000000 1206 ns/op	     432 B/op	       6 allocs/op
BenchmarkStructLevelValidationSuccess-4            	 2000000 829 ns/op	     160 B/op	       6 allocs/op
BenchmarkStructLevelValidationFailure-4            	 1000000 1403 ns/op	     592 B/op	      11 allocs/op
BenchmarkStructSimpleCustomTypeSuccess-4           	 1000000 1238 ns/op	      80 B/op	       5 allocs/op
BenchmarkStructSimpleCustomTypeFailure-4           	 1000000 1771 ns/op	     624 B/op	      11 allocs/op
BenchmarkStructPartialSuccess-4                    	 1000000 1399 ns/op	     400 B/op	      11 allocs/op
BenchmarkStructPartialFailure-4                    	 1000000 1926 ns/op	     816 B/op	      16 allocs/op
BenchmarkStructExceptSuccess-4                     	 2000000 930 ns/op	     368 B/op	       9 allocs/op
BenchmarkStructExceptFailure-4                     	 1000000 1381 ns/op	     400 B/op	      11 allocs/op
BenchmarkStructSimpleCrossFieldSuccess-4           	 1000000 1253 ns/op	     128 B/op	       6 allocs/op
BenchmarkStructSimpleCrossFieldFailure-4           	 1000000 1849 ns/op	     560 B/op	      11 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldSuccess-4	 1000000 1902 ns/op	     176 B/op	       9 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldFailure-4	  500000 2453 ns/op	     608 B/op	      14 allocs/op
BenchmarkStructSimpleSuccess-4                     	 1000000 1182 ns/op	      48 B/op	       3 allocs/op
BenchmarkStructSimpleFailure-4                     	 1000000 1842 ns/op	     624 B/op	      11 allocs/op
BenchmarkStructSimpleSuccessParallel-4             	 5000000 342 ns/op	      48 B/op	       3 allocs/op
BenchmarkStructSimpleFailureParallel-4             	 2000000 665 ns/op	     624 B/op	      11 allocs/op
BenchmarkStructComplexSuccess-4                    	  200000 7924 ns/op	     512 B/op	      30 allocs/op
BenchmarkStructComplexFailure-4                    	  100000 12605 ns/op	    3415 B/op	      72 allocs/op
BenchmarkStructComplexSuccessParallel-4            	 1000000 2421 ns/op	     512 B/op	      30 allocs/op
BenchmarkStructComplexFailureParallel-4            	  300000 4234 ns/op	    3416 B/op	      72 allocs/op
```
pull/215/head
joeybloggs 9 years ago
parent ec28e2da37
commit b0bd08d7c8
2 changed files with 30 additions and 30 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 56
      README.md
  2. 4
      validator.go

56
README.md
Unescape View File

@ -310,34 +310,34 @@ Benchmarks
```go
$ go test -cpu=4 -bench=. -benchmem=true
PASS
BenchmarkFieldSuccess-4 5000000 254 ns/op 0 B/op 0 allocs/op
BenchmarkFieldFailure-4 2000000 779 ns/op 400 B/op 4 allocs/op
BenchmarkFieldDiveSuccess-4 500000 3451 ns/op 480 B/op 27 allocs/op
BenchmarkFieldDiveFailure-4 300000 3954 ns/op 880 B/op 31 allocs/op
BenchmarkFieldCustomTypeSuccess-4 3000000 451 ns/op 32 B/op 2 allocs/op
BenchmarkFieldCustomTypeFailure-4 2000000 751 ns/op 400 B/op 4 allocs/op
BenchmarkFieldOrTagSuccess-4 1000000 1312 ns/op 16 B/op 1 allocs/op
BenchmarkFieldOrTagFailure-4 1000000 1206 ns/op 432 B/op 6 allocs/op
BenchmarkStructLevelValidationSuccess-4 2000000 829 ns/op 160 B/op 6 allocs/op
BenchmarkStructLevelValidationFailure-4 1000000 1403 ns/op 592 B/op 11 allocs/op
BenchmarkStructSimpleCustomTypeSuccess-4 1000000 1238 ns/op 80 B/op 5 allocs/op
BenchmarkStructSimpleCustomTypeFailure-4 1000000 1771 ns/op 624 B/op 11 allocs/op
BenchmarkStructPartialSuccess-4 1000000 1399 ns/op 400 B/op 11 allocs/op
BenchmarkStructPartialFailure-4 1000000 1926 ns/op 816 B/op 16 allocs/op
BenchmarkStructExceptSuccess-4 2000000 930 ns/op 368 B/op 9 allocs/op
BenchmarkStructExceptFailure-4 1000000 1381 ns/op 400 B/op 11 allocs/op
BenchmarkStructSimpleCrossFieldSuccess-4 1000000 1253 ns/op 128 B/op 6 allocs/op
BenchmarkStructSimpleCrossFieldFailure-4 1000000 1849 ns/op 560 B/op 11 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldSuccess-4 1000000 1902 ns/op 176 B/op 9 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldFailure-4 500000 2453 ns/op 608 B/op 14 allocs/op
BenchmarkStructSimpleSuccess-4 1000000 1182 ns/op 48 B/op 3 allocs/op
BenchmarkStructSimpleFailure-4 1000000 1842 ns/op 624 B/op 11 allocs/op
BenchmarkStructSimpleSuccessParallel-4 5000000 342 ns/op 48 B/op 3 allocs/op
BenchmarkStructSimpleFailureParallel-4 2000000 665 ns/op 624 B/op 11 allocs/op
BenchmarkStructComplexSuccess-4 200000 7924 ns/op 512 B/op 30 allocs/op
BenchmarkStructComplexFailure-4 100000 12605 ns/op 3415 B/op 72 allocs/op
BenchmarkStructComplexSuccessParallel-4 1000000 2421 ns/op 512 B/op 30 allocs/op
BenchmarkStructComplexFailureParallel-4 300000 4234 ns/op 3416 B/op 72 allocs/op
BenchmarkFieldSuccess-4 10000000 163 ns/op 0 B/op 0 allocs/op
BenchmarkFieldFailure-4 2000000 673 ns/op 400 B/op 4 allocs/op
BenchmarkFieldDiveSuccess-4 500000 3019 ns/op 480 B/op 27 allocs/op
BenchmarkFieldDiveFailure-4 500000 3553 ns/op 880 B/op 31 allocs/op
BenchmarkFieldCustomTypeSuccess-4 5000000 347 ns/op 32 B/op 2 allocs/op
BenchmarkFieldCustomTypeFailure-4 2000000 645 ns/op 400 B/op 4 allocs/op
BenchmarkFieldOrTagSuccess-4 1000000 1177 ns/op 16 B/op 1 allocs/op
BenchmarkFieldOrTagFailure-4 1000000 1093 ns/op 432 B/op 6 allocs/op
BenchmarkStructLevelValidationSuccess-4 2000000 702 ns/op 160 B/op 6 allocs/op
BenchmarkStructLevelValidationFailure-4 1000000 1279 ns/op 592 B/op 11 allocs/op
BenchmarkStructSimpleCustomTypeSuccess-4 1000000 1010 ns/op 80 B/op 5 allocs/op
BenchmarkStructSimpleCustomTypeFailure-4 1000000 1544 ns/op 624 B/op 11 allocs/op
BenchmarkStructPartialSuccess-4 1000000 1249 ns/op 400 B/op 11 allocs/op
BenchmarkStructPartialFailure-4 1000000 1797 ns/op 816 B/op 16 allocs/op
BenchmarkStructExceptSuccess-4 2000000 927 ns/op 368 B/op 9 allocs/op
BenchmarkStructExceptFailure-4 1000000 1259 ns/op 400 B/op 11 allocs/op
BenchmarkStructSimpleCrossFieldSuccess-4 1000000 1076 ns/op 128 B/op 6 allocs/op
BenchmarkStructSimpleCrossFieldFailure-4 1000000 1623 ns/op 560 B/op 11 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldSuccess-4 1000000 1582 ns/op 176 B/op 9 allocs/op
BenchmarkStructSimpleCrossStructCrossFieldFailure-4 1000000 2139 ns/op 608 B/op 14 allocs/op
BenchmarkStructSimpleSuccess-4 1000000 1040 ns/op 48 B/op 3 allocs/op
BenchmarkStructSimpleFailure-4 1000000 1683 ns/op 624 B/op 11 allocs/op
BenchmarkStructSimpleSuccessParallel-4 5000000 356 ns/op 48 B/op 3 allocs/op
BenchmarkStructSimpleFailureParallel-4 2000000 831 ns/op 624 B/op 11 allocs/op
BenchmarkStructComplexSuccess-4 200000 6738 ns/op 512 B/op 30 allocs/op
BenchmarkStructComplexFailure-4 200000 11387 ns/op 3415 B/op 72 allocs/op
BenchmarkStructComplexSuccessParallel-4 500000 2330 ns/op 512 B/op 30 allocs/op
BenchmarkStructComplexFailureParallel-4 300000 4857 ns/op 3416 B/op 72 allocs/op
```
How to Contribute

4
validator.go
Unescape View File

@ -69,15 +69,15 @@ type tagCacheMap struct {
func (s *tagCacheMap) Get(key string) (*cachedTag, bool) {
s.lock.RLock()
defer s.lock.RUnlock()
value, ok := s.m[key]
s.lock.RUnlock()
return value, ok
}
func (s *tagCacheMap) Set(key string, value *cachedTag) {
s.lock.Lock()
defer s.lock.Unlock()
s.m[key] = value
s.lock.Unlock()
}
// StructLevel contains all of the information and helper methods

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