This avoids dynamic construction of the private class. According to
the benchmark we go from 4,550 to 3,900 instruction reads per iteration.
(without change 32629676 the baseline is 5,600)
Change-Id: I5df925e30dbd49bdde87173e481820574ce5abe1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The current question is whether activeThreadCount() should be lock-free
(using atomic ints) or mutex-protected, so this tests start()
and activeThreadCount() directly.
Change-Id: Ica4a2ad023c2002e3c7d81558e6b9ee64af7f690
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
QFSFileEnginePrivate::canonicalized has been gone for a very, very long time now
(since d3b152ba1e3cd38dd675c801474105d518bacb44 in Qt 4).
This also fixes a build failure in the code on Windows.
Change-Id: I81f5e0c1d644b1b4d75644626eb394a663535387
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Each pair of (normal request, preconnect request) requires only one
socket. E.g. if there is 1 preconnect request in-flight and 2 normal
requests, we need only 2 sockets in total, and not 3.
Therefore, we need to keep track of whether a request is
preconnecting or a normal one.
Task-number: QTBUG-31594
Change-Id: If92ccc35abadfa6090d64ee92bd466615909c94c
Reviewed-by: Richard J. Moore <rich@kde.org>
Compilation failed because "open" is defined as "open64" in fcntl.h.
This definition is reverted now.
Change-Id: I9badcf11131320c53e442cd5b8b21bb5aa4efee5
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Peter Hartmann <phartmann@blackberry.com>
When calling intersect() on a large (1000000 items) QSet, with a small
(1000 items) QSet as the argument, the function takes signifcantly
longer than when the operand and the argument are reversed. This is
because the operand set is always iterated over in its entirety.
This patch changes intersect() to iterate over the smaller set. This
reduces the large operand scenario's benchmark to ~0.000063
milliseconds, compared to the current ~134 milliseconds:
1000000.intersect(1000) = empty: 0.000063 (was 134)
1000.intersect(1000000) = empty: 0.000039 (was 0.000036)
1000000.intersect(1000) = 500: 0.10 vs (was 130)
1000.intersect(1000000) = 500: 0.023 vs (was 0.093)
1000000.intersect(1000) = 1000: 0.20 vs (was 139)
1000.intersect(1000000) = 1000: 0.017 vs (was 0.016)
Task-number: QTBUG-22026
Change-Id: I54b25c49c78c458fef355e9c6222da8a64c7681f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
If an app knows it needs to connect to a host beforehand, it can "warm up" the
connection cache by making DNS lookup, TCP (and if needed SSL) handshake before
the actual HTTP request is sent. When the HTTP request is made, it will be
considerably faster when there is already a working connection.
Here are some typical results from the benchmark:
* Linux desktop with Ethernet:
"http://www.google.com" full request: 279 ms, pre-connect request: 61 ms,
difference: 218 ms
"https://www.google.com" full request: 344 ms, pre-connect request: 60 ms,
difference: 284 ms
* mobile device (BlackBerry 10) with Wifi:
"https://www.google.com" full request: 898 ms, pre-connect request: 159 ms,
difference: 739 ms
"http://www.google.com" full request: 707 ms, pre-connect request: 200 ms,
difference: 507 ms
Task-number: QTBUG-30771
Change-Id: I3566b7f08216ab93a39e2024ae7d1ceb7ae21891
Reviewed-by: Jonas Gastal <gastal@intel.com>
Reviewed-by: Richard J. Moore <rich@kde.org>
Void is not constructible, so there is no point in checking how fast
it can be constructed.
Change-Id: Icb4b607bebce30fff5fc57b105101f019e0e0db5
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
In some situations we can get into resizeSections in a hidden
QHeaderView. If the headerView is hidden then we look at all the
rows, and that can be extemely expensive for a large model.
This patch limits the sizeHint with only looking at a maximum
1000 rows. Though this is more inaccurate it is also faster -
and it is not much different from what QTreeView does.
Change-Id: Ief4b54c5a3c5a0db02e8b595c9b9b3162633ee67
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
This removes some XFAILS that were no longer correct and
fixes some existing problems in the tests where ODBC is
concerned.
Change-Id: I91de526bb50ad4046ba07ddb5336aa3714966687
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
Reviewed-by: Caroline Chao <caroline.chao@digia.com>
It was only used for toUpper/toLower but always computed in the
constructor, including QString::toLatin1 conversion and allocations.
This needlessly slows down all other uses, including supposedly "cheap"
operations QString::toDouble, or accesses inside QResourceFileEngine.
The benchmarks indicates that doing it always when needed is bearable.
There's still a lot of improvement potential on these code paths.
Change-Id: I88b637ee11f9f7ea614f8da4ec5df0bf40664fce
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
WEC7 does not have ws2_32 lib. The lib is needed for gethostname symbol,
instead of using hard coded platform specific libs,
rely on QMAKE_NETWORK_LIBS variable containing network libs.
Change-Id: Ice39ca3f2d176cc5df88beded4b64d2b92f4f3ba
Reviewed-by: Björn Breitmeyer <bjoern.breitmeyer@kdab.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Andreas Holzammer <andreas.holzammer@kdab.com>
Use Q_OS_WINCE ifdef in both method declaration and definition,
in addition combine QT_NO_PROCESS and Q_OS_WINCE ifdefs to one line.
Change-Id: I0787e4341c41b46a5fc089f24a538c0ad40a0875
Reviewed-by: Björn Breitmeyer <bjoern.breitmeyer@kdab.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Andreas Holzammer <andreas.holzammer@kdab.com>
Oracle has a limitation of 30 characters for a tablename so the main
change is to account for this, which meant changing all the usages of
qTableName(). Some other fixes are included that ensure the tests are
working correctly as far as Oracle is concerned.
Change-Id: I8ad8a5a33e6a70fcad235f6a7e82e91687b74fee
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
By moving it to QSqlDriverPrivate we make it easier to check what
database is actually connected which is particularly useful for the
autotests.
Change-Id: I54d1c2c998919c1d54efb1b6ac9303070ece54aa
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
Remove all trailing whitespace from the following list of files:
*.cpp *.h *.conf *.qdoc *.pro *.pri *.mm *.rc *.pl *.qps *.xpm *.txt *README
excluding 3rdparty, test-data and auto generated code.
Note A): the only non 3rdparty c++-files that still
have trailing whitespace after this change are:
* src/corelib/codecs/cp949codetbl_p.h
* src/corelib/codecs/qjpunicode.cpp
* src/corelib/codecs/qbig5codec.cpp
* src/corelib/xml/qxmlstream_p.h
* src/tools/qdoc/qmlparser/qqmljsgrammar.cpp
* src/tools/uic/ui4.cpp
* tests/auto/other/qtokenautomaton/tokenizers/*
* tests/benchmarks/corelib/tools/qstring/data.cpp
* util/lexgen/tokenizer.cpp
Note B): in about 30 files some overlapping 'leading tab' and
'TAB character in non-leading whitespace' issues have been fixed
to make the sanity bot happy. Plus some general ws-fixes here
and there as asked for during review.
Change-Id: Ia713113c34d82442d6ce4d93d8b1cf545075d11d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
In case somebody uses QVector as a stack, it is not fair to have
takeLast, removeLast and pop_back to do way too much work.
This is still very slow compared to std::vector::pop_back
(mostly due implicit sharing), however it is more than a
factor faster than before.
Change-Id: I636872675e80c8ca0c8ebc94b04f587a2dcd6d8d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This adds a fast insert on QMap when providing a correct hint.
Change-Id: I256bba342932c1d4f24c6e65074e1bf47b519537
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
All Web service APIs like Facebook, Twitter etc. use SSL for
uploading pictures etc., so it is good to have a benchmark
for that.
Task-number: QTBUG-28764
Change-Id: I590f76ac8b6575509f1635c18c35f9fe652fa8f8
Reviewed-by: Richard J. Moore <rich@kde.org>
The macro was made empty in ba3dc5f3b5
and is no longer necessary or used.
Discussed-on: http://lists.qt-project.org/pipermail/development/2013-January/009284.html
Change-Id: Id2bb2e2cabde059305d4af5f12593344ba30f001
Reviewed-by: Laszlo Papp <lpapp@kde.org>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>
These types are either built-in or 'automatically declared' and so
don't need to be explicitly declared as metatypes.
Change-Id: Iba4b7f8ff7a1c7974d144b955cbf064e43b36ec7
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
this is much more elegant than the so far propagated !isEmpty(QT.foo.name).
also replace feature-specific tests (no-gui and no-widgets) and the
obsolete contains(QT_CONFIG, foo) syntax.
Change-Id: Ia4b3c8febcabf9eeca67b1f9173a523820b1038b
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Reviewed-by: Tasuku Suzuki <stasuku@gmail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
CONFIG += pcre is enabled if we're using the Qt PCRE, which isn't
compiled for 8-bit. If it isn't set, then we have a system PCRE.
Change-Id: I29d043b9d3f4d3223dcbb41eadc9f859e710eb88
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
it compiles just fine without it.
if this was meant to inject a newer version of JSC than what is in
QtScript, it can be redone without creating a bizarre hybrid.
Change-Id: I61fe60bfa6a9bdb6423e8a7135250e332a5835ec
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
we were already installing them into QtCore/private, so turn them into
proper private headers to start with. this cleans up our project files.
Change-Id: I0795f79e03b60b5854de9e4dc339e9b5a5e6fd87
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Also change Trolltech for QtProject in other places
Task-number: QTBUG-23269
Change-Id: Ie4e344f23cab77c575562d18b481b3369ce30491
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
This makes the structure of the examples after an 'make install'
similar to the one in a 'developer build'.
Change-Id: I9120bd741fab332e64e30adc01cefe87e5633454
Reviewed-by: Martin Smith <martin.smith@digia.com>
Benchmark tests are not supposed to be run by "make check"
Change-Id: I718565a8b4e71c136c7aa8f9bd95f95c5fdafab8
Reviewed-by: Rohan McGovern <rohan@mcgovern.id.au>
Add a read position variable to eliminate excessive memcpy'ing when
reading a partial buffer.
Specifically, fix performance issue of reading large files from
QNetworkDiskCache in QtWebKit2.
Task-number: QTBUG-27522
Change-Id: I21edc909bf9223971b2c3db5f1fa6b89c5b61c5f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Antti Harju <antti.harju@ixonos.com>
tst_QMimeDatabase::inheritsPerformance() is not an unit test but a
performance test, so moving it from 'tests/auto/corelib/mimetypes/qmimedatabase'
to 'tests/benchmarks/corelib/mimetypes/qmimedatabase'
Change-Id: I59e84f61559023659f101666683870f2ca1d2034
Reviewed-by: David Faure (KDE) <faure@kde.org>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
We can insert directly on the most left-most Node.
We always enforce an insert here (unlike the insert call),
but that is not a problem since the keys in a std::map are unique.
Change-Id: Ib409b90ffc57a5a43dab4a4b08d34f6fdabd057f
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
This suggestion keeps track of the most left node.
The point is that constBegin() becomes a lot faster.
That speeds up iteration a bit, and makes it O(1) to get the
first element. The penalty in insert and remove is very small.
On large trees it seems to be less than 1%.
It should be noticed that constBegin() is a very common hint
on my planned change to 5.1, and this opperation will without
this patch cost 2 x log N. One when the user calls the hint
with begin - and one where it is compared with begin.
Other std::maps has a very fast begin(). E.g
http://www.cplusplus.com/reference/stl/map/begin/
(begin with constant time)
Change-Id: I221f6755aa8bd16a5189771c5bc8ae56c8ee0fb4
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Giving the std-map a hint (normally) improves insert performance.
There seems to be no reason not to provide this hint.
Change-Id: I4344607ebf54574a3ae9666d87a41a3c14762361
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Normalise all signal/slot signatures in tests/*/corelib,
except in tst_QObject, where they might be test data.
Change-Id: Id4e101f285b1676bb583b0afae06d235e599e24b
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
tst_QProcess::echoTest_performance() is not an unit test but a
performance test, so moving it from 'tests/auto/corelib/io/qprocess'
to 'tests/benchmarks/corelib/io/qprocess'
Change-Id: I796788534eafc5ca3b8d86c0ec46998285fd4b8f
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
