f78ce93a80
collection of speed and memory saving hacks
13 years ago
0cbda0b2b8
- replaced all length() == 0 and size() == 0 with isEmpty()
...
- replaced some length() > 0 and size() > 0 with !isEmpty() - cannot be
done automatically
- implemented some isEmpty() methods
13 years ago
b0c408788b
made class methods static where possible
13 years ago
5bd3c90907
- removed unnecessary semicolons
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- added default case for switch
13 years ago
7c1ba99755
removed more unused method parameters
13 years ago
83701a1b4c
removed unused ImageReference package
13 years ago
0301aba1e9
removed unused method parameters
13 years ago
ea10766bfd
cleaned unnecessary nested code
13 years ago
613b45f604
- better data structures in secondary search
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- fixed a big memory leak in secondary search
13 years ago
8a82609360
- smaller caches to save memory
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- close cloneable iterators to free memory
13 years ago
ce8d4b87d9
fixes for new eclipse 'Juno' warning 'Resource leak'.
13 years ago
0c345d1559
giving threads name so its easier to see whats happening during
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debugging and within a thread dump
13 years ago
9264d8b4af
removed old navigation practice using subject tags in favor of
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triplestore-tags
13 years ago
61bb52d55c
- using http://purl.org/dc/terms/references to refer from an
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auto-annotated document to a 'pseudo-linked' document which has an url
created with an object-prefix as defined in the vocabulary file
13 years ago
8b53771db2
changed behavior of navigation processing:
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- vocabulary annotation is not done any more into the metadata of urldb
- vocabularies are written into the jena triplestore using a rdf
vocabulary
- vocabularies for rdf tripel must be updated; refactoring done
- with the new navigation tags in the triplestore a faster
pre-urldb-lookup is possible: navigation is processed now within the RWI
during pre-ranking retrieval
- added also a Owl vocabulary stub to add the plain-text url to the
triplestore using the owl:sameas predicate
13 years ago
407fdf6968
more bug fixes and performance hacks for search process
13 years ago
e0d8643226
- performance hacks
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- added log warnings in case that search processes run into time-out
situations
- better concurrency for Integer formatter (used a non-synchronized
formatter before)
- bugfix for search termination (a poison pill was missing)
- added timeout parameters for search (again) -> target is, that they
are never reached.
13 years ago
9b4c699526
ehanced location search:
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- search request are now made using a map boundary
- search results are only computed for the map boundary
- the number of results is adopted to the results in the visible range
- added a double-buffering for the search result markers
- added a search query option for the search results:
/radius/<lat>/<lon>/<radius>
13 years ago
10da7335ea
performance hack: use a hash cache for all hashes that are computed by a
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byte array. If this hash is used in a HashMap (which is very often the
case) then this hack eliminates a lot of re-computations of the same
hash.
13 years ago
7c1feefb28
introduced a default 10 second time-out in rwi normalization time
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uring search process to prevent endless deadlocks after a very long
running search
13 years ago
7e0ddbd275
added a "fromCache" flag in Response object to omit one cache.has()
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check during snippet generation. This should cause less blockings
13 years ago
f294f2e295
bugfix to http://bugs.yacy.net/view.php?id=181
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tried to make a bit less 'noise' to dns server
also included: less processes in snippet fetch to reduce load during
search on small computers
13 years ago
acf8d521a2
fix for http://bugs.yacy.net/view.php?id=126
13 years ago
15db703808
added missing serialization to remove all warnings
13 years ago
e32055aa15
added stub classes for
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- a new database for url reference data ('seen links')
- a new database extending the references to the full url metadata
attributes set which shall replace the old metadata database if it is
finished
- migration help classes stub to use old and new metadata databases
simultanously
13 years ago
2fc8ecee36
ConcurrentLinkedQueue has a VERY long return time on the .size() method.
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See
http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/ConcurrentLinkedQueue.html
and the following test programm:
public class QueueLengthTimeTest {
public static long countTest(Queue<Integer> q, int c) {
long t = System.currentTimeMillis();
for (int i = 0; i < c; i++) {
q.add(q.size());
}
return System.currentTimeMillis() - t;
}
public static void main(String[] args) {
int c = 1;
for (int i = 0; i < 100; i++) {
Runtime.getRuntime().gc();
long t1 = countTest(new ArrayBlockingQueue<Integer>(c), c);
Runtime.getRuntime().gc();
long t2 = countTest(new LinkedBlockingQueue<Integer>(), c);
Runtime.getRuntime().gc();
long t3 = countTest(new ConcurrentLinkedQueue<Integer>(),
c);
System.out.println("count = " + c + ": ArrayBlockingQueue =
" + t1 + ", LinkedBlockingQueue = " + t2 + ", ConcurrentLinkedQueue = "
+ t3);
c = c * 2;
}
}
}
13 years ago
1cd711d005
added classes for citation references (for new citation ranking)
13 years ago
e0f1e7d904
added new citation reference data structure that shall be used for a
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citation ranking
13 years ago
4540174fe0
memory hacks
13 years ago
e2f8f263e8
changed storage of search words: keep order
13 years ago
2ea585d616
fix for host navigator
13 years ago
4901cee3cc
suppress auto-tagged subject entries when sending out or receiving
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metadata from other peers
13 years ago
b7bb84c0bb
set a limit to CharBuffer object size to fight against bad/too large
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content
13 years ago
20962a4ed7
added metadata node stub for metadata from blobs
13 years ago
9e5894c784
Removed handling of components objects for URIMetadataRows.
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This is a preparation to replace this rows with nodes from the node
store.
13 years ago
1f4afb4dc0
performance hacks
13 years ago
e9dc99fe15
added rules to set specific RWIs as private RWIs which are not
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transmitted to remote peers. This will be used for private index copies
and phonetic indexes.
13 years ago
0bcef2d156
added feature as requested in
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http://forum.yacy-websuche.de/viewtopic.php?f=18&t=3461
The search can now be configured with a non-display host list.
the search will always exlude the given list of host unless they are
requested directly using the host navigation
13 years ago
204c29f010
small bugfixes for search result display and cache display
13 years ago
86b3385847
fixed a deadlock during secondary remote search
13 years ago
0cf9ebc3b0
speed enhancements when parsing RWI rows (makes search slightly faster)
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8096 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
709013385a
fix for language fix
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8086 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
c0c6e9e7a5
fix for bad language encoding
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8082 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
0d858d48ec
replaced String with StringBuilder in suggestion process
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@8020 6c8d7289-2bf4-0310-a012-ef5d649a1542
13 years ago
813f297a95
another performance hack: re-use of known host addresses for isLocal property; avoids look-up in local hash
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7983 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
035ebfbf3b
- performance hacks (should affect the crawl balancer and reduce CPU load during crawl stack re-fill)
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- this may have also (good) performance side effects on other parts of YaCy
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7982 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
d2ea250d99
refactoring:
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- moved many classes from de.anomic to net.yacy
- made more sub-packages for search classes
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7973 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
734059d33e
performance hacks
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7955 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
52230a6864
replaced catching of Exception with Throwable, which catches also Errors
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7926 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
1912d0cccc
changed handling of RowSet element retrieval: until today all elements had been copied from the underlying byte[] arrays into a new Entry object that again had a copy of a portion of that byte[] in its own bye[]. There was an option to just refer to the underlying byte[] with a pointer but that was almost never used. This commit now changes an interface to the Row class where it is now necessary to tell if a copy is always required. Fortunately the copy is only needed in very rare cases. That means that this change should cause much less memory allocation; it is expected that this happens especially during search situations.
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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7840 6c8d7289-2bf4-0310-a012-ef5d649a1542
14 years ago
Michael Peter Christen