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Ben Noordhuis 83f8d98806 module: cache stat() results more aggressively Reduce the number of stat() system calls that require() makes by caching the results more aggressively. To avoid unbounded growth without implementing a LRU cache, scope the cache to the lifetime of the first call to require(). Recursive calls (i.e. require() calls in the included code) transparently profit from the cache. The benchmarked application is the loopback-sample-app[0] and it sees the number of stat calls at start-up go down by 40%, from 4736 to 2810. [0] https://github.com/strongloop/loopback-sample-app PR-URL: https://github.com/nodejs/node/pull/4575 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>	9 years ago
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one.js	module: cache stat() results more aggressively	9 years ago
two.js	module: cache stat() results more aggressively	9 years ago

Ben Noordhuis 83f8d98806 module: cache stat() results more aggressively

Reduce the number of stat() system calls that require() makes by caching
the results more aggressively.

To avoid unbounded growth without implementing a LRU cache, scope the
cache to the lifetime of the first call to require().  Recursive calls
(i.e. require() calls in the included code) transparently profit from
the cache.

The benchmarked application is the loopback-sample-app[0] and it sees
the number of stat calls at start-up go down by 40%, from 4736 to 2810.

[0] https://github.com/strongloop/loopback-sample-app

PR-URL: https://github.com/nodejs/node/pull/4575
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

9 years ago

one.js

module: cache stat() results more aggressively

9 years ago

two.js

module: cache stat() results more aggressively

9 years ago