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[help-GIFT] memory leak in the gift-server?
From: |
Daniel Burckhardt |
Subject: |
[help-GIFT] memory leak in the gift-server? |
Date: |
Fri, 31 May 2002 14:12:13 +0200 |
hi everyone
i'm using the gift-server for a video-installation - combining live
web-cam images with stored movie-sequences
(http://www.resiteprojects.de).
the basic algorithm is very simple: every 30 seconds, i send the current
web-cam image to the gift server that matches it against still images
from the movies - the movies with highest similarities will be played
next.
for this, i use the CFeedbackClient (i put some code at the end).
my problem is that the gift-process picks up about 192kb of memory for
each query.
the quite reducable pattern (looking at top) is:
0k start of call to gift (e.g 19196k total)
+4k spawning gift-extract-feature (e.g 19196k total)
+12k begin gift-extract-feature (e.g 19208k total)
+108k gift-extract-feature returning (e.g 19316 total)
+4k end gift-extract-feature (e.g 19320k total)
+66k finishing call to gift (e.g 19388 total)
right now, i just restart it with a cron-job every 12 hours. so it's not
really a show-stopper. but i'd be of course interested in a real fix.
i'm using gift-0.1.8 on a linux 2.4.10-64GB-SMP kernel (suse 7.3)
thanks very much for your package & your work
daniel burckhardt
----------------------------
use lib '/usr/local/bin'; # for including CFeedbackClient
use CFeedbackClient;
&gift_query;
sub gift_query { # child
my $lHost="localhost:12789";
my @lQuery = ([('file:/home/resite/temp/cam.jpg'), 1]);
my $lFeedbackClient=new CFeedbackClient();
my $lAlgorithmID;
my $lCollectionID;
my $lAdditionalAlgorithmAttributes;
#the following line is redundant, because
#this is the default
$lFeedbackClient->setAddress($lHost);
$lFeedbackClient->setResultSize(20);# set the size of the desired
query result
$lFeedbackClient->startSession("-perl-one-shot-query-");
$lFeedbackClient->configureSession(
$lFeedbackClient->getSessionID(),
$lAlgorithmID,
$lCollectionID,
$lAdditionalAlgorithmAttributes
);#take the defaults
print "Making query\n";
STDOUT->autoflush(1);
my $lQueryToSend=$lFeedbackClient->makeQueryString(
address@hidden,
$lFeedbackClient->getSessionID(),
$lAlgorithmID,
$lCollectionID,
);
# SENDING THE QUERY
$lFeedbackClient->sendQueryString($lQueryToSend);
my $lResultList=$lFeedbackClient->getResultList();
[snip: do something with the result]
}
--
d m burckhardt * marienburger str 32 * d-10405 berlin * 030-44 73 90 44
- [help-GIFT] memory leak in the gift-server?,
Daniel Burckhardt <=