[
https://issues.apache.org/jira/browse/COUCHDB-3245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15709515#comment-15709515
]
ASF subversion and git services commented on COUCHDB-3245:
----------------------------------------------------------
Commit 14157e3ee03f1f0c6ea5580a52b9de3b93bc149c in couchdb's branch
refs/heads/master from [~vatamane]
[ https://git-wip-us.apache.org/repos/asf?p=couchdb.git;h=14157e3 ]
Bump couch dependency. Fixes couchjs -S option not taking effect
Closes COUCHDB-3245
> couchjs -S option doesn't have any effect
> -----------------------------------------
>
> Key: COUCHDB-3245
> URL: https://issues.apache.org/jira/browse/COUCHDB-3245
> Project: CouchDB
> Issue Type: Bug
> Reporter: Nick Vatamaniuc
>
> currently -S option of couchjs sets stack _chunk_ size for js contexts
> Reference: to
> https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_NewContext
> Documentation recommends 8K and I have seen cases where it was raised to 1G+
> in production!. That doesn't seem right at all and also probably kills
> performance and eats memory.
> Docs from above say:
> > The stackchunksize parameter does not control the JavaScript stack size.
> > (The JSAPI does not provide a way to adjust the stack depth limit.) Passing
> > a large number for stackchunksize is a mistake. In a DEBUG build, large
> > chunk sizes can degrade performance dramatically. The usual value of 8192
> > is recommended
> Instead we should be setting the max gc value which is set in the runtime
> {{JS_NewRuntime(uint32_t maxbytes)}}
> Experimentally a large maxbytes seems to fix out of memory error caused by
> large views. I suspect that it works because it stops GC. At some point we
> probably drops some object, GC collects them and we crash...
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)