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https://issues.apache.org/jira/browse/ZOOKEEPER-1229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J reassigned ZOOKEEPER-1229:
----------------------------------
Assignee: Harsh J
> C client hashtable_remove redundantly calls hash function
> ---------------------------------------------------------
>
> Key: ZOOKEEPER-1229
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1229
> Project: ZooKeeper
> Issue Type: Improvement
> Components: c client
> Affects Versions: 3.3.3
> Reporter: Eric Abbott
> Assignee: Harsh J
> Priority: Trivial
> Labels: newbie
> Attachments: ZOOKEEPER-1229.patch
>
>
> hashtable_remove appears to call the hash function in consecutive lines. As
> hash functions are generally cpu intensive, using the hashvalue returned from
> the first call will result in a performance improvement.
> {noformat}
> void * /* returns value associated with key */
> hashtable_remove(struct hashtable *h, void *k)
> ...
> unsigned int hashvalue, index;
> hashvalue = hash(h,k);
> index = indexFor(h->tablelength,hash(h,k));
> pE = &(h->table[index]);
> e = *pE;
> {noformat}
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