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https://issues.apache.org/jira/browse/SOLR-7110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14497904#comment-14497904
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Noble Paul edited comment on SOLR-7110 at 4/16/15 11:10 AM:
------------------------------------------------------------
I ran the tests and I consistently got better perf with cache. Attached is the
patch to modify the tests to get this output
{noformat}
THREADS=1
####### test started w/o cache
return=0 THROUGHPUT=222965
####### test started with cache
return=0 THROUGHPUT=269978
cache: hits=18999981 lookups=19000000 size=19
%age improvement with cache :21
THREADS=2
####### test started w/o cache
return=0 THROUGHPUT=269396
####### test started with cache
return=0 THROUGHPUT=278086
cache: hits=18999981 lookups=19000000 size=19
%age improvement with cache :3
THREADS=3
####### test started w/o cache
return=0 THROUGHPUT=276090
####### test started with cache
return=0 THROUGHPUT=285062
cache: hits=18999981 lookups=19000000 size=19
%age improvement with cache :3
THREADS=4
####### test started w/o cache
return=0 THROUGHPUT=275633
####### test started with cache
return=0 THROUGHPUT=282246
cache: hits=18999981 lookups=19000000 size=19
%age improvement with cache :2
{noformat}
was (Author: noble.paul):
I ran the tests and I consistently got better perf with cache. Attached is the
patch to modify the tests to get this output
{noformat}
THREADS=1
####### test started w/o cache
return=0 THROUGHPUT=217770
####### test started with cache
return=0 THROUGHPUT=275785
cache: hits=18999981 lookups=19000000 size=19
throughput diff numbers per second withcache - withoutcache : 58015
THREADS=2
####### test started w/o cache
return=0 THROUGHPUT=266382
####### test started with cache
return=0 THROUGHPUT=274197
cache: hits=18999981 lookups=19000000 size=19
throughput diff numbers per second withcache - withoutcache : 7815
THREADS=3
####### test started w/o cache
return=0 THROUGHPUT=271296
####### test started with cache
return=0 THROUGHPUT=281373
cache: hits=18999981 lookups=19000000 size=19
throughput diff numbers per second withcache - withoutcache : 10077
THREADS=4
####### test started w/o cache
return=0 THROUGHPUT=268168
####### test started with cache
return=0 THROUGHPUT=282645
cache: hits=18999981 lookups=19000000 size=19
throughput diff numbers per second withcache - withoutcache : 14477
{noformat}
> Optimize JavaBinCodec to minimize string Object creation
> --------------------------------------------------------
>
> Key: SOLR-7110
> URL: https://issues.apache.org/jira/browse/SOLR-7110
> Project: Solr
> Issue Type: Improvement
> Reporter: Noble Paul
> Assignee: Noble Paul
> Priority: Minor
> Fix For: Trunk, 5.2
>
> Attachments: JavabinPerf.patch, SOLR-7110.patch, SOLR-7110.patch,
> SOLR-7110.patch
>
>
> In JavabinCodec we already optimize on strings creation , if they are
> repeated in the same payload. if we use a cache it is possible to avoid
> string creation across objects as well.
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