Agniva De Sarker 2dba5dbf86 MM-21368: Optimize MapStringsToQueryParams (#13601) ...

- Use strings.Builder which minimizes allocations.
- Avoid fmt.Sprintf which is slower than simple string concat.

Results:

name                                      old time/op    new time/op    delta
MapStringsToQueryParams/one_item-8           512ns ± 2%     377ns ± 1%  -26.27%  (p=0.000 n=10+9)
MapStringsToQueryParams/multiple_items-8     858ns ± 5%     748ns ± 2%  -12.82%  (p=0.000 n=10+9)

name                                      old alloc/op   new alloc/op   delta
MapStringsToQueryParams/one_item-8            456B ± 0%      384B ± 0%  -15.79%  (p=0.000 n=10+9)
MapStringsToQueryParams/multiple_items-8      608B ± 0%      592B ± 0%   -2.63%  (p=0.000 n=10+10)

name                                      old allocs/op  new allocs/op  delta
MapStringsToQueryParams/one_item-8            8.00 ± 0%      6.00 ± 0%  -25.00%  (p=0.000 n=10+10)
MapStringsToQueryParams/multiple_items-8      12.0 ± 0%      12.0 ± 0%     ~     (all equal)

2020-01-09 07:44:01 -08:00

1.4 KiB

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