930
96%
master: 68%

Ran 14 May 2016 10:26PM UTC

Jobs 1

Files 29

Run time 2s

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Build # 930

Build Type

push

travis-ci

Committed by

vavrusa

Commit Message

lib/cache: reuse read-only transactions

usual pattern is that several read transactions
are spawned for each query, which has a modest
cost for some backends such as LMDB. in order to
amortize this cost, a read-only transaction is
reused as long as:
* there is no write transaction
* cache is not cleared/closed

this has potential drawbacks and risks:
* stale read transaction will prevent freeing
  pages if running in multi-process mode, but
  in practice this shouldn't happen, only if one
  process was doing nothing and the other busy
* some other backends use the concept of transaction
  to cache content from remote servers (Redis),
  in this case we shouldn't reuse it indefinitely

Run Details

4618 of 6016 relevant lines covered (76.76%)

4354.01 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	930.1	14 May 2016 10:26PM UTC	0	76.76	Travis Job 930.1

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CZ-NIC / knot-resolver / 930
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master: 68%

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