right Mark, Single proc machines are very rare in production nowadays.Even laptops come w/ multiple cores
On Mon, Nov 3, 2008 at 2:13 AM, Mark Miller <[EMAIL PROTECTED]> wrote: > Single processor pentium 4? Shouldn't someone benchmark this with tech from > this century:) you know some comps are not room size now right? > > Not being very serious... > > - Mark > > > On Nov 2, 2008, at 10:34 AM, "Yonik Seeley (JIRA)" <[EMAIL PROTECTED]> wrote: > >> >> [ >> https://issues.apache.org/jira/browse/SOLR-667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12644594#action_12644594 >> ] >> >> Yonik Seeley commented on SOLR-667: >> ----------------------------------- >> >> bq. Isn't it too expensive to create a potentially huge array every time >> we do a clean? (too much work for GC) >> >> That's what benchmarking is for :-) >> >> It's a single short-lived allocation that allows us to greatly reduce the >> number of elements we need to evaluate on successive passes. Inserts into a >> TreeSet may have a higher GC cost given it's an allocation per insert. >> >>> Alternate LRUCache implementation >>> --------------------------------- >>> >>> Key: SOLR-667 >>> URL: https://issues.apache.org/jira/browse/SOLR-667 >>> Project: Solr >>> Issue Type: New Feature >>> Components: search >>> Affects Versions: 1.3 >>> Reporter: Noble Paul >>> Assignee: Yonik Seeley >>> Fix For: 1.4 >>> >>> Attachments: ConcurrentLRUCache.java, ConcurrentLRUCache.java, >>> ConcurrentLRUCache.java, SOLR-667-alternate.patch, SOLR-667-alternate.patch, >>> SOLR-667-updates.patch, SOLR-667.patch, SOLR-667.patch, SOLR-667.patch, >>> SOLR-667.patch, SOLR-667.patch, SOLR-667.patch, SOLR-667.patch, >>> SOLR-667.patch, SOLR-667.patch >>> >>> >>> The only available SolrCache i.e LRUCache is based on _LinkedHashMap_ >>> which has _get()_ also synchronized. This can cause severe bottlenecks for >>> faceted search. Any alternate implementation which can be faster/better must >>> be considered. >> >> -- >> This message is automatically generated by JIRA. >> - >> You can reply to this email to add a comment to the issue online. >> > -- --Noble Paul
