175
97%

Ran 09 May 2016 11:01PM UTC

Jobs 3

Files 10

Run time 1min

Badge

Embed ▾

pending completion

Build # 175

Build Type

push

travis-ci

Committed by

akshayjshah

Commit Message

Add a sampling wrapper (#36)

* Add a spy logger

* Add a sampling wrapper

* Rebase on master

* Reset sampler counters each tick

Use the runtime's timer heap to manage a tick interval for sampling
loggers, but make sure that we don't put anything on the heap until we
start dropping logs. This should keep the non-sampled path fast, and
allow the sampled path to actually shed work.

* Make spy.New return the logger and the sink

* Sample by call site

* Bucket logs by message instead of call site

From my benchmarks, `runtime.Callers` is suprisingly expensive. It's
actually quite a bit cheaper to maintain a separate bucket for each
message, since hashing small-ish strings is quite fast.

* Benchmark sampling with a variety of messages

* Less string hashing

* Travis is very, very slow

* Comments from CR

Run Details

440 of 455 relevant lines covered (96.7%)

41112.86 hits per line

Jobs

ID	Job ID	Ran	Coverage
1	175.1	09 May 2016 11:01PM UTC	96.7	Travis Job 175.1
2	175.2	09 May 2016 11:01PM UTC	96.7	Travis Job 175.2
3	175.3	09 May 2016 11:02PM UTC	96.7	Travis Job 175.3

uber-common / zap / 175
97%

README BADGES
x

Markdown

Textile

RDoc

HTML

Rst

Jobs

Source Files on build 175

uber-common / zap / 175 97%

README BADGES x

Markdown

Textile

RDoc

HTML

Rst

Jobs

Source Files on build 175

uber-common / zap / 175
97%

README BADGES
x