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>
The QLabel is not actually used.
Change-Id: Ia3f43b734fa52ad002111943ed1ba55b9e8a678c
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
This reverts commit 101d04681f.
That change seems to have introduced a few regressions, and
Creator hits an assertion that it introduced because it assumes
the additionalFormats consists of well-formed ranges
(QTCREATORBUG-7995).
Change-Id: Ic4ae761e6e7f6df8a6b5ca565ceb250647420c15
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
This is useful when the additional formats are used on a
text layout using a raw font. It can also come in handy for
input methods operating on a QTextDocument.
We now consider all format range edges to generate the
associated items. The capitalization can be overridden via
the additionnal formats mechanism.
Adds an autotest that checks that this works with font capitalization.
Change-Id: I782d2c48d05b0dfbad480a9ca77198465292b358
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Change copyrights and license headers from Nokia to Digia
Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
It's closer to what we do with in QMutex than pthread_mutex_lock.
Change-Id: I86498a800b69b684bf096912e911bc5bca219727
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
This corrects the mismatch between using floats for internal storage
and qreal in the API of QVector*D which leads to lots of implicit
casts between double and float.
This change also stops users from being surprised by the loss of
precision when using these classes on desktop platforms and removes
the need for the private constructors taking a dummy int as the final
argument.
The QMatrix4x4 and QQuaternion classes have been changed to use float
for their internal storage since these are meant to be used in
conjunction with the QVector*D classes. This is to prevent unexpected
loss of precision and to improve performance.
The on-disk format has also been changed from double to float thereby
reducing the storage required when streaming vectors and matrices. This
is potentially a large saving when working with complex 3D meshes etc.
This also has a significant performance improvement when passing
matrices to QOpenGLShaderProgram (and QGLShaderProgram) as we no
longer have to iterate and convert the data to floats. This is
an operation that could easily be needed many times per frame.
This change also opens the door for further optimisations of these
classes to be implemented by using SIMD intrinsics.
This needs to be applied in conjunction with
https://codereview.qt-project.org/#change,33548
Task-number: QTBUG-21035
Task-number: QTBUG-20661
Change-Id: I9321b06040ffb93ae1cbd72fd2013267ac901b2e
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
When QTextLayout is used in a QTextDocument, many code paths use
special caches and thus greatly outperform the raw QTextLayout version
that operates directly on a QString.
This patch brings some of these optimizations also to the raw version.
We now also use a QFormatCollection in such cases and enable the
functionality of QTextEngine::indexAdditionalFormats() and
QTextEngine::resolveAdditionalFormats(). Thanks to that, we can greatly
speed up QTextEngine::format(), which now uses an amort O(1) hash table
lookup instead of a O(N) linear search.
The added benchmark shows a gain in the order of one magnitude:
./tst_bench_QText formattedLayout:long-many
before applying the patch:
378.19 msecs per iteration (total: 37,820, iterations: 100)
after applying the patch:
25.80 msecs per iteration (total: 2,580, iterations: 100)
Note: This change is source-incompatible for applications using the private
QTextEngine API.
Task-number: QTBUG-8389
Change-Id: Ifcf7a8902a394428979ea06a6d955f886ee739c7
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
QDateTime will attempt to convert unknown types of date to UTC time, which isn't
exactly a fast process. As we don't care about local timezones in the process of
sorting (as this is purely for ordering, not display to the end user), we can
force the dates to use UTC time, avoiding the unnecessary local timezone lookup.
This also adds a benchmark covering this case.
Benchmark results, Qt 5:
- before: 11, 489ms
- after: 273ms
Qt 4.8:
- before: 20, 848ms
- after: 278ms
Change-Id: I87fa6260e820b5b172d3306ff395dafe767c33ff
Reported-by: Thomas Perl <m@thp.io>
Reviewed-by: Alberto Mardegan <mardy@users.sourceforge.net>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Qt 5.0 beta requires changing the default to the 5.0 API, disabling
the deprecated code. However, tests should test (and often do) the
compatibility API too, so turn it back on.
Task-number: QTBUG-25053
Change-Id: I8129c3ef3cb58541c95a32d083850d9e7f768927
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Ensure benchmarks which need QtWidgets are gracefully disabled when
that module is unavailable.
Fixed one unnecessary usage of "QT+=widgets".
Change-Id: I8031b5dca585749f0f4d22e0637adc3f57f4e418
Reviewed-by: Kalle Lehtonen <kalle.ju.lehtonen@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>
Using the nullary version has the advantage that multiple calls
during a program run are much more efficient, since an inlined
atomic is used to store the result. It also ensures that
Q_DECLARE_METATYPE(T) has been used, whereas qRegisterMetaType<T>("T")
will happily register anything. So I've added the macro where it
was missing, or moved it to a central place when it existed
hidden.
In tst_qnetworkreply, this became a bit tricky, because a private
header is conditionally included, so moved the Q_DECLARE_METATYPE()
into a conditional section, too.
Change-Id: I71484523e4277f4697b7d4b2ddc3505375162727
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Change-Id: I19d3b2e9a5180b13deb828b55195404ef20be295
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Store the signal index in QObjectPrivate::Connection, thereby making
it available in "implicit" disconnect contexts (i.e., receiver
deletion).
This change does not cause the size of QObjectPrivate::Connection
to grow (still 40 bytes on 32-bit Linux, 72 bytes on 64-bit Mac).
Valgrinding the new benchmark indicates that the percentage of the
time spent in the QObject destructor increased from 7.8% to 8.4%
on ia32, for that particular stress test; the increase is the
combined cost of calling metaObject(), QMetaObjectPrivate::signal(),
and disconnectNotify() for one connection. In practice, the measured
wallclock time increased by about 3ms for a 500ms run (which
repeatedly constructs, connects, and destroys an object).
Task-number: QTBUG-4844
Change-Id: I1beb01c753f31542fc0acb62edb4c6d165fcc5b4
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
qdatetime.h uses std::min/max and on Windows windows.h (or some subsequent
header file) may under certain circumstances define min/max as macros.
The easiest way to prevent the windows header files from doing that is to
define NOMINMAX in the place right before windows.h is included. The other
way is to define min and max to min/max themselves to prevent windows.h
from doing its evil thing.
If a user of Qt (WebKit in this case) chooses the approach of defining
min/max to themselves and then includes qdatetime.h, then a subsequent
inclusion of windows.h doesn't work because qdatetime.h undefines min/max.
We should not enforce the type of workaround needed, therefore this patch
removes the workaround from qdatetime.h and requires user code that
happens to include windows header files before qdatetime.h (seldom case)
to choose either workaround.
Change-Id: I7347eec7369491a065e894cff557004e069453d5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
+ QChar::LastValidCodePoint enum value that supercede the UNICODE_LAST_CODEPOINT macro
replace uses of hardcoded values with the new API; remove leftovers
Change-Id: I1395c9840b85fcb6b08e241b131794a98773c952
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
MinGW installations on case-sensitive filesystems expect
lowercase names of include-libraries and (usually) include
files.
When crosscompiling on Debian 6 (targeting MS Windows) linking
fails because mingw is looking for non-existent include-libraries.
Using lowercase names solves this.
Change-Id: Id3454f4ed8ba42b6ea93d65d9c0ce567db6712df
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
This operation should be a no-op anyway, since at this point in time,
the fromAscii and toAscii functions simply call their fromLatin1 and
toLatin1 counterparts.
Task-number: QTBUG-21872
Change-Id: I052a3412a568ad639f2bf169b4491b56dddff1c7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This operation should be a no-op anyway, since at this point in time,
the fromAscii and toAscii functions simply call their fromLatin1 and
toLatin1 counterparts.
Task-number: QTBUG-21872
Change-Id: I6ea46cd6dfed75afc253fa2b4e3f1789bdad1d4e
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
