What does allocs/op and B/op mean in go benchmark?
When I run my benchmarks with go test -v -bench=. -benchmem, I see the following results.
f1 10000 120860 ns/op 2433 B/op 28 allocs/op
f2 10000 120288 ns/op 2288 B/op 26 allocs/op
Based on my understanding:
10000is the number of iterationsfor i := 0; i < b.N; i++ {.
XXX ns/opis approximate time it took for one iteration to complete
But even after reading the docs, I can not find out what B/op and allocs/op mean.
My guess is that allocs/op has something to do with garbage collection and memory allocation (the less the better).
Can anyone give a nice explanation of the meaning of these values. Also it would be nice to know why do the go up and main steps to reduce them (I realize this is test specific, but may be there are some universal hints that work in many cases)
go benchmarking
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
add a comment |
When I run my benchmarks with go test -v -bench=. -benchmem, I see the following results.
f1 10000 120860 ns/op 2433 B/op 28 allocs/op
f2 10000 120288 ns/op 2288 B/op 26 allocs/op
Based on my understanding:
10000is the number of iterationsfor i := 0; i < b.N; i++ {.
XXX ns/opis approximate time it took for one iteration to complete
But even after reading the docs, I can not find out what B/op and allocs/op mean.
My guess is that allocs/op has something to do with garbage collection and memory allocation (the less the better).
Can anyone give a nice explanation of the meaning of these values. Also it would be nice to know why do the go up and main steps to reduce them (I realize this is test specific, but may be there are some universal hints that work in many cases)
go benchmarking
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
add a comment |
When I run my benchmarks with go test -v -bench=. -benchmem, I see the following results.
f1 10000 120860 ns/op 2433 B/op 28 allocs/op
f2 10000 120288 ns/op 2288 B/op 26 allocs/op
Based on my understanding:
10000is the number of iterationsfor i := 0; i < b.N; i++ {.
XXX ns/opis approximate time it took for one iteration to complete
But even after reading the docs, I can not find out what B/op and allocs/op mean.
My guess is that allocs/op has something to do with garbage collection and memory allocation (the less the better).
Can anyone give a nice explanation of the meaning of these values. Also it would be nice to know why do the go up and main steps to reduce them (I realize this is test specific, but may be there are some universal hints that work in many cases)
go benchmarking
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
When I run my benchmarks with go test -v -bench=. -benchmem, I see the following results.
f1 10000 120860 ns/op 2433 B/op 28 allocs/op
f2 10000 120288 ns/op 2288 B/op 26 allocs/op
Based on my understanding:
10000is the number of iterationsfor i := 0; i < b.N; i++ {.
XXX ns/opis approximate time it took for one iteration to complete
But even after reading the docs, I can not find out what B/op and allocs/op mean.
My guess is that allocs/op has something to do with garbage collection and memory allocation (the less the better).
Can anyone give a nice explanation of the meaning of these values. Also it would be nice to know why do the go up and main steps to reduce them (I realize this is test specific, but may be there are some universal hints that work in many cases)
go benchmarking
go benchmarking
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
asked Feb 23 '16 at 21:24
Salvador DaliSalvador Dali
117k84505598
117k84505598
add a comment |
add a comment |
1 Answer
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allocs/op means how many distinct memory allocations occurred per op (single iteration).
B/op is how many bytes were allocated per op.
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
Is that B/op the allocations, made in stake frame or in heap? Or is it what the memory amount that GO GC has to clean?
– user3219492
Aug 4 '17 at 19:45
add a comment |
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1 Answer
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oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
allocs/op means how many distinct memory allocations occurred per op (single iteration).
B/op is how many bytes were allocated per op.
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
Is that B/op the allocations, made in stake frame or in heap? Or is it what the memory amount that GO GC has to clean?
– user3219492
Aug 4 '17 at 19:45
add a comment |
allocs/op means how many distinct memory allocations occurred per op (single iteration).
B/op is how many bytes were allocated per op.
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
Is that B/op the allocations, made in stake frame or in heap? Or is it what the memory amount that GO GC has to clean?
– user3219492
Aug 4 '17 at 19:45
add a comment |
allocs/op means how many distinct memory allocations occurred per op (single iteration).
B/op is how many bytes were allocated per op.
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
allocs/op means how many distinct memory allocations occurred per op (single iteration).
B/op is how many bytes were allocated per op.
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
answered Feb 23 '16 at 21:36
Not_a_GolferNot_a_Golfer
30.1k28664
30.1k28664
Is that B/op the allocations, made in stake frame or in heap? Or is it what the memory amount that GO GC has to clean?
– user3219492
Aug 4 '17 at 19:45
add a comment |
Is that B/op the allocations, made in stake frame or in heap? Or is it what the memory amount that GO GC has to clean?
– user3219492
Aug 4 '17 at 19:45
Is that B/op the allocations, made in stake frame or in heap? Or is it what the memory amount that GO GC has to clean?
– user3219492
Aug 4 '17 at 19:45
Is that B/op the allocations, made in stake frame or in heap? Or is it what the memory amount that GO GC has to clean?
– user3219492
Aug 4 '17 at 19:45
add a comment |
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