1891
100%

Ran 30 Sep 2016 02:56AM UTC

Jobs 1

Files 66

Run time 4s

Badge

Embed ▾

pending completion

Build # 1891

Build Type

push

travis-ci

Committed by

ben-manes

Commit Message

Ensure backpressure's task is executed last (fixes #124)

In most workloads writes are relatively rare and spaced apart. The write
buffer is a handoff between the writer and the async maintenance task
being triggered. That buffer may grow to a limit, at which point the
cache forces backpressure to cope with the high write rate. In this case
the writer blocks and tries to help out by performing the maintenace work.

In the above case the writer's task could not be scheduled, so when it
performs the clean-up it must also run its pending task. Previously this
was done prior to the buffers being drained, as order shouldn't matter. But
in a unit test a user could observe a premature eviction, because the last
addition was pushed to the front of the admission window.

This fix now keeps the writer's task at the tail, so the writer won't evict
the entry early. That won't have much of a real-world impact, but does play
nicer in unit tests.

Coverage Stats

5351 of 5673 relevant lines covered (94.32%)

0.94 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	1891.1 (TERM=dumb)	30 Sep 2016 02:56AM UTC	0	94.32	Travis Job 1891.1

Source Files on build 1891

Detailed source file information is not available for this build.

ben-manes / caffeine / 1891
100%

README BADGES
x

Markdown

Textile

RDoc

HTML

Rst

Jobs

Source Files on build 1891

ben-manes / caffeine / 1891 100%

README BADGES x

Markdown

Textile

RDoc

HTML

Rst

Jobs

Source Files on build 1891

ben-manes / caffeine / 1891
100%

README BADGES
x