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https://issues.apache.org/jira/browse/COUCHDB-980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12969376#action_12969376
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Filipe Manana commented on COUCHDB-980:
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Committed to trunk (revision 1043524).
> Micro optimization to couch_file
> --------------------------------
>
> Key: COUCHDB-980
> URL: https://issues.apache.org/jira/browse/COUCHDB-980
> Project: CouchDB
> Issue Type: Improvement
> Components: Database Core
> Reporter: Filipe Manana
> Assignee: Filipe Manana
>
> The following short patch moves the MD5 verification outside the couch_file
> server:
> https://github.com/fdmanana/couchdb/commit/51c463d682c478dcb273bd88f1ef3046a709689f
> Despite being apparently so insignificant (couch_util:md5/1 takes about 700us
> in my machine), I get this significant results with relaximation:
> $ node tests/compare_write_and_read.js --wclients 100 --rclients 200 \
> -name1 md5_out -name2 trunk \
> -url1 http://localhost:5984/ -url2 http://localhost:5985/ \
> --duration 120
> run 1)
> http://graphs.mikeal.couchone.com/#/graph/5c859b3e7d1b9bd0488cfe271105130c
> run 2)
> http://graphs.mikeal.couchone.com/#/graph/5c859b3e7d1b9bd0488cfe2711051bba
> The documents used in the test have a size of about 1Kb.
> If nobody has an objection, I'll commit this to trunk.
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