Benchmark Data

Summary Links

madkins/sloggy is a new slog.Handler built from the ground up to generate JSON log records. While the performance isn't top-tier, this handler adheres faithfully to documented slog.Handler and observed slog.JSONHandler behavior. The madkins/flash handler, derived from this one, has better performance.

madkins/flash
madkins/sloggy

Benchmark Data

Score: 82.35

Benchmark	Runs	Ns/Op	Allocs/Op	Bytes/Op	MB/Sec	Score
Attributes	425,600	2,808.00	64	1,384	159.92	77.90
Big Group	6,782	172,366.00	5,845	62,008	172.81	74.33
Disabled	322,120,028	3.73	0	0	0.00	96.83
Key Values	367,309	2,849.00	64	1,384	157.59	77.97
Logging	17,766	67,583.00	1,865	26,992	142.22	76.89
Simple	1,749,944	681.90	14	240	130.52	77.71
Simple Source	680,320	1,708.00	30	1,280	166.87	70.43
With Attrs Attributes	428,588	2,801.00	64	1,384	300.28	85.36
With Attrs Key Values	427,964	2,856.00	64	1,384	294.46	85.34
With Attrs Simple	1,742,838	690.50	14	240	696.56	94.65
With Group Attributes	419,445	2,849.00	64	1,384	162.84	85.40
With Group Key Values	406,041	2,875.00	64	1,384	161.37	85.41

Benchmark Charts

Warnings

Score: 98.46

Suggested

Duplicates Duplicate field(s) found

Some handlers (e.g. slog.JSONHandler) will output multiple occurrences of the same field name if the logger is called with multiple instances of the same field, generally by using WithAttrs and then the same fields in the eventual log call (e.g. Info). This behavior is currently under debate with no resolution at this time (2024-01-15) and a release milestone of (currently unscheduled) Go 1.23, (whereas Go Release 1.22 is currently expected in February 2024).

Verify: Attribute Duplicate		map[alpha:2 charlie:3]

Verify: Attribute With Duplicate		map[alpha:2 charlie:3]

Handler madkins/sloggy

Benchmark Data

Benchmark Charts

Warnings