Commit Graph

6006 Commits

Author SHA1 Message Date
Brendt Lucas
ac8ac59148 [#2642] CompositeByteBuf.deallocate memory/GC improvement
Motivation:

CompositeByteBuf.deallocate generates unnecessary GC pressure when using the 'foreach' loop, as a 'foreach' loop creates an iterator when looping.

Modification:

Convert 'foreach' loop into regular 'for' loop.

Result:

Less GC pressure (and possibly more throughput) as the 'for' loop does not create an iterator
2014-07-08 21:08:14 +02:00
Norman Maurer
33a810a513 Move generic code to HttpOrSpdyChooser to simplify implementations
Motivation:

HttpOrSpdyChooser can be simplified so the user not need to implement getProtocol(...) method.

Modification:

Add implementation for the method. The user can override it if necessary.

Result:

Easier usage of HttpOrSpdyChooser.
2014-07-07 09:37:10 +02:00
Trustin Lee
0fe2824729 Add missing m2eclipse life cycle mapping
Also, use ignore instead of execution because those plugins are not
really useful when building from Eclipse anyway.
2014-07-06 16:53:29 +09:00
Trustin Lee
e167b02d52 [maven-release-plugin] prepare for next development iteration 2014-07-04 17:26:02 +09:00
Trustin Lee
ba50cb829b [maven-release-plugin] prepare release netty-4.1.0.Beta1 2014-07-04 17:25:54 +09:00
Trustin Lee
787663a644 [maven-release-plugin] rollback the release of netty-4.1.0.Beta1 2014-07-04 17:11:14 +09:00
Trustin Lee
83eae705e1 [maven-release-plugin] prepare release netty-4.1.0.Beta1 2014-07-04 17:02:17 +09:00
Trustin Lee
97825598d2 Fix another buffer leaks in JsonObjectDecoderTest 2014-07-04 16:12:06 +09:00
Trustin Lee
5b87cdc8bd Reduce the perceived time taken to retrieve initialSeedUniquifier
Motivation:

When system is in short of entrophy, the initialization of
ThreadLocalRandom can take at most 3 seconds.  The initialization occurs
when ThreadLocalRandom.current() is invoked first time, which might be
much later than the moment when the application has started.  If we
start the initialization of ThreadLocalRandom as early as possible, we
can reduce the perceived time taken for the retrieval.

Modification:

Begin the initialization of ThreadLocalRandom in InternalLoggerFactory,
potentially one of the firstly initialized class in a Netty application.

Make DefaultChannelId retrieve the current process ID before retrieving
the current machine ID, because retrieval of a machine ID is more likely
to use ThreadLocalRandom.current().

Use a dummy channel ID for EmbeddedChannel, which prevents many unit
tests from creating a ThreadLocalRandom instance.

Result:

We gain extra 100ms at minimum for initialSeedUniquifier generation.  If
an application has its own initialization that takes long enough time
and generates good amount of entrophy, it is very likely that we will
gain a lot more.
2014-07-04 16:04:48 +09:00
Trustin Lee
11fdec3c4a Log the time taken for generating the initialSeedUniquifier
- Sometimes useful to know it how long it takes from the log, to make
  sure it's not something else that is blocking.
2014-07-04 13:26:58 +09:00
Trustin Lee
cde7157c39 Make JsonObjectDecoder discard everything after stream corruption
Motivation:

There's no way to recover from a corrupted JSON stream. The current
implementation will raise an infinite exception storm when a peer sends
a large corrupted stream.

Modification:

Discard everything once stream corruption is detected.

Result:

Fixes a buffer leak
Fixes exception storm
2014-07-04 11:16:00 +09:00
Norman Maurer
f8c95c3827 [#2586] Use correct EventLoop to notify delayed bind failures
Motivation:

When a bind fails AbstractBootstrap will use the GlobalEventExecutor to notify the ChannelPromise. We should use the EventLoop of the Channel if possible.

Modification:

Use EventLoop of the Channel if possible to use the correct Thread to notify and so guaranteer the right order of events.

Result:

Use the correct EventLoop for notification
2014-07-03 21:31:05 +02:00
Norman Maurer
217fb0de05 [#2618] Introduce ChannelPromise.unvoid() and ChannelFuture.isVoid()
Motivation:

There is no way for a ChannelHandler to check if the passed in ChannelPromise for a write(...) call is a VoidChannelPromise. This is a problem as some handlers need to add listeners to the ChannelPromise which is not possible in the case of a VoidChannelPromise.

Modification:

- Introduce ChannelFuture.isVoid() which will return true if it is not possible to add listeners or wait on the result.
- Add ChannelPromise.unvoid() which allows to create a ChannelFuture out of a void ChannelFuture which supports all the operations.

Result:

It's now easy to write ChannelHandler implementations which also works when a void ChannelPromise is used.
2014-07-03 14:17:12 +02:00
Trustin Lee
a1974ef35b Fix an inspector warning in JsonObjectDecoder 2014-07-03 20:01:48 +09:00
Trustin Lee
d0b355b26e Fix a buffer leak in JsonObjectDecoderTest 2014-07-03 19:58:06 +09:00
Jakob Buchgraber
aed13ba5ef Split a JSON byte stream into JSON objects/arrays. Fixes #2536
Motivation:

See GitHub Issue #2536.

Modifications:

Introduce the class JsonObjectDecoder to split a JSON byte stream
into individual JSON objets/arrays.

Result:

A Netty application can now handle a byte stream where multiple JSON
documents follow eachother as opposed to only a single JSON document
per request.
2014-07-03 18:34:29 +09:00
Trustin Lee
10623ae133 Let OkResponseHandler extend SimpleChannelInboundHandler
Motivation:

OkResponseHandler is the last handler in the pipeline of the HTTP CORS
example.  It is responsible for releasing all messages it handled.

Modification:

Extend SimpleChannelInboundHandler instead of
ChannelInboundHandlerAdapter

Result:

Fixed a leak
2014-07-03 18:14:40 +09:00
Trustin Lee
fbf1bdbef1 Fix the build timeout when 'leak' profile is active
Motivation:

AbstractByteBufTest.testInternalBuffer() uses writeByte() operations to
populate the sample data.  Usually, this isn't a problem, but it starts
to take a lot of time when the resource leak detection level gets
higher.

In our CI machine, testInternalBuffer() takes more than 30 minutes,
causing the build timeout when the 'leak' profile is active (paranoid
level resource detection.)

Modification:

Populate the sample data using ThreadLocalRandom.nextBytes() instead of
using millions of writeByte() operations.

Result:

Test runs much faster when leak detection level is high.
2014-07-03 17:55:10 +09:00
Trustin Lee
3c6bc0b4cb Fix unclean backport in InternalLoggerFactory
.. which leaked in from d0912f2709
2014-07-02 20:27:06 +09:00
Trustin Lee
d0912f2709 Fix most inspector warnings
Motivation:

It's good to minimize potentially broken windows.

Modifications:

Fix most inspector warnings from our profile
Update IntObjectHashMap

Result:

Cleaner code
2014-07-02 19:55:07 +09:00
Norman Maurer
7a05a617f6 [#2558] Define SO_REUSEPORT if not defined
Motivation:

Currently it is impossible to build netty on linux system that not define SO_REUSEPORT even if it is supported.

Modification:

Define SO_REUSEPORT if not defined.

Result:

Possible to build on more linux dists.
2014-07-02 09:40:10 +02:00
Norman Maurer
36b80c25f7 Correctly return from selector loop one a scheduled task is ready for processing
Motivation:

We use the nanoTime of the scheduledTasks to calculate the milli-seconds to wait for a select operation to select something. Once these elapsed we check if there was something selected or some task is ready for processing. Unfortunally we not take into account scheduled tasks here so the selection loop will continue if only scheduled tasks are ready for processing. This will delay the execution of these tasks.

Modification:

- Check if a scheduled task is ready after selecting
- also make a tiny change in NioEventLoop to not trigger a rebuild if nothing was selected because the timeout was reached a few times in a row.

Result:

Execute scheduled tasks on time.
2014-07-02 09:10:37 +02:00
Norman Maurer
23840b76d7 [#2623] Release local references to guard against StackOverflow in JNI
Motivation:

When we do a (env*)->GetObjectArrayElement(...) call we may created many local references which will only be cleaned up once we exist the native method. Thus a lot of memory can be used and so a StackOverFlow may be triggered. Beside this the JNI specification only say that an implementation must cope with 16 local references.

Modification:

Call (env*)->ReleaseLocalRef(...) to release the resource once not needed anymore.

Result:

Less memory usage and guard against StackOverflow
2014-06-30 09:57:13 +02:00
Norman Maurer
9594a81b95 [#2622] Correctly check reference count before try to work on the underlying memory
Motivation:

Because of how we use reference counting we need to check for the reference count before each operation that touches the underlying memory. This is especially true as we use sun.misc.Cleaner.clean() to release the memory ASAP when possible. Because of this the user may cause a SEGFAULT if an operation is called that tries to access the backing memory after it was released.

Modification:

Correctly check the reference count on all methods that access the underlying memory or expose it via a ByteBuffer.

Result:

Safer usage of ByteBuf
2014-06-30 07:14:25 +02:00
Jay
461d3c876f Maintain decoder result in HttpObjectAggregator
Motivation:
DecodeResult is dropped when aggregate HTTP messages.

Modification:

Make sure we not drop the DecodeResult while aggregate HTTP messages.

Result:

Correctly include the DecodeResult for later processing.
2014-06-28 22:08:53 +02:00
xmxsuperstar
79195da0d7 fix example missing break statement in ReplayingDecoder 2014-06-28 21:42:23 +02:00
Norman Maurer
2fa0b83e73 Cleanup comment / code 2014-06-27 21:36:52 +02:00
Norman Maurer
776f3aeb3d Let EpollReuseAddrTest also work with kernel versions that not have bugfix release part 2014-06-27 17:56:17 +02:00
Norman Maurer
8bf8252060 [#2615] Correctly update SelectionKey after selector rebuild
Motivation:

When a select rebuild was triggered the reference to the SelectionKey is not updated in AbstractNioChannel. This will cause a CancelledKeyException later.

Modification:

Correctly update SelectionKey reference after rebuild

Result:

Fix exception
2014-06-27 17:21:34 +02:00
Trustin Lee
cd62f2f21e Upgrade JACOCO to the latest version
.. to fix the build errors triggered by the old JACOCO release
2014-06-27 17:23:59 +09:00
Trustin Lee
520479d43b Enable verbose:gc only when 'leak' profile is disabled
The leak profile generates a lot of garbage which makes the verbose:gc
output too large.
2014-06-27 17:10:36 +09:00
Trustin Lee
2c0ecd9d44 Remove the deprecated methods in SPDY
SPDY is an experimental package. No need to keep ABI compatibility.
2014-06-27 16:47:38 +09:00
Norman Maurer
90c65b7157 [#2604] Not try to use sun.misc.Cleaner when on android
Motivation:

When a user tries to use netty on android it currently fails with "Could not find class 'sun.misc.Cleaner'"

Modification:

Encapsulate sun.misc.Cleaner usage in extra class to workaround this isssue.

Result:
Netty can be used on android again
2014-06-27 08:25:42 +02:00
Zhihui Jiao
c4441642bb Fix inconsistent code in the doc 2014-06-27 06:48:40 +02:00
Norman Maurer
76cd3a37e5 [#2598] Add Epoll.isAvailable() which allows to check if epoll can be used.
Motivation:

At the moment there is no simple way for a user to check if the native epoll transport can be used on the running platform. Thus the user can only try to instance it and catch any exception and fallback to nio transport.

Modification:

Add Epoll.isAvailable() which allows to check if epoll can be used.

Result:

User can easily check if epoll transport can be used or not
2014-06-26 12:27:09 +02:00
Norman Maurer
b0e5c9be00 [#2605] Use SO_REUSEADDR on EpollServerSocketChannel to match defaults of java.nio.ServerSocketChannel impl
Motivation:

When using openjdk and oracle jdk's nio (while using the nio transport) the ServerSocketChannel uses SO_REUSEADDR by default. Our native transport should do the same to make it easier to switch between the different implementations and get the expected result.

Modification:

Change EpollServerSocketChannelConfig to set SO_REUSEADDR on the created socket.

Result:

SO_REUSEADDR is used by default on servers.
2014-06-26 11:57:40 +02:00
Trustin Lee
d2e385acc2 Fix incorrect bytesBefore/indexOf() in ReplayingDecoderBuffer
Motivation:

bytesBefore(length, ...), bytesBefore(index, length, ...), and
indexOf(fromIndex, toIndex,...) in ReplayingDecoderBuffer are buggy.
They trigger 'REPLAY even when they don't need to.

Modification:

Implement the buggy methods properly so that REPLAYs are not triggered
unnecessarily.

Result:

Correct behvaior
2014-06-26 18:56:33 +09:00
Norman Maurer
4d2b78ca3c Reduce the memory copies in JdkZlibEncoder
Motivation:

At the moment we use a lot of unnecessary memory copies in JdkZlibEncoder. This is caused by either allocate a to small ByteBuf and expand it later or using a temporary byte array.
Beside this the memory footprint of JdkZlibEncoder is pretty high because of the byte[] used for compressing.

Modification:

- Override allocateBuffer(...) and calculate the estimatedsize in there, this reduce expanding of the ByteBuf later
- Not use byte[] in the instance itself but allocate a heap ByteBuf and write directly into the byte array

Result:

Less memory copies and smaller memory footprint
2014-06-26 11:12:19 +02:00
Trustin Lee
937f790f70 Checkstyle 2014-06-26 17:48:32 +09:00
Trustin Lee
5f889d92a1 Fix buffer leaks in Bzip2Decoder(Test)
If decompression fails, the buffer that contains the decompressed data
is not released.  Bzip2DecoderTest.testStreamCrcError() also does not
release the partial output Bzip2Decoder produces.
2014-06-26 17:48:32 +09:00
Trustin Lee
c0462c0c3b Optimize PoolChunk
- Using short[] for memoryMap did not improve performance. Reverting
  back to the original dual-byte[] structure in favor of simplicity.
- Optimize allocateRun() which yields small performence improvement
- Use local variable when member fields are accessed more than once
2014-06-26 17:06:10 +09:00
Trustin Lee
dbc011c3f4 Fix inspector warnings 2014-06-26 17:06:10 +09:00
Pavan Kumar
69a6ad940a Improve the allocation algorithm in PoolChunk
Motivation:

Depth-first search is not always efficient for buddy allocation.

Modification:

Employ a new faster search algorithm with different memoryMap layout.

Result:

With thread-local cache disabled, we see a lot of performance
improvment, especially when the size of the allocation is as small as
the page size, which had the largest search space previously.
2014-06-26 17:06:10 +09:00
Norman Maurer
56d732d439 Fix buffer leaks in Bzip2DecoderTest 2014-06-26 09:21:44 +02:00
Norman Maurer
31211487e9 Use IntObjectMap to replace Map in EpollEventLoop.
Motivation:

We need to map from ints to AbstractEpollChannel in EpollEventLoop but there is no need for box to Integer.

Modification:

Replace Map with IntObjectMap.

Result:

No more auto-boxing needed.
2014-06-25 20:22:58 +02:00
Norman Maurer
8a75ba35ef [#2599] Not use sun.nio.ch.DirectBuffer as it not exists on android
Motivation:

During some refactoring we changed PlatformDependend0 to use sun.nio.ch.DirectBuffer for release direct buffers. This broke support for android as the class does not exist there and so an exception is thrown.

Modification:

Use again the fieldoffset to get access to Cleaner for release direct buffers.

Result:
Netty can be used on android again
2014-06-25 15:07:02 +02:00
Alexey Parfenov
4b4f4e619e Fix integer overflow in HttpObjectEncoder when handling chunked encoding and FileRegion > Integer.MAX_VALUE
Motivation:

Due to integer overflow bug, writes of FileRegions to http server pipeline (eg like one from HttpStaticFileServer example) with length greater than Integer.MAX_VALUE are ignored in 1/2 of cases (ie no data gets sent to client)

Modification:

Correctly handle chunk sized > Integer.MAX_VALUE

Result:

Be able to use FileRegion > Integer.MAX_VALUE when using chunked encoding.
2014-06-24 12:03:48 +02:00
Trustin Lee
41d44a8161 Remove 'get' prefix from all HTTP/SPDY messages
Motivation:

Persuit for the consistency in method naming

Modifications:

- Remove the 'get' prefix from all HTTP/SPDY message classes
- Fix some inspector warnings

Result:

Consistency
2014-06-24 18:03:33 +09:00
onlychoice
5275f37ffb Fix a typo in comment 2014-06-24 11:01:35 +02:00
Norman Maurer
030bcaae81 Improve performance of Recycler
Motivation:

Recycler is used in many places to reduce GC-pressure but is still not as fast as possible because of the internal datastructures used.

Modification:

 - Rewrite Recycler to use a WeakOrderQueue which makes minimal guaranteer about order and visibility for max performance.
 - Recycling of the same object multiple times without acquire it will fail.
 - Introduce a RecyclableMpscLinkedQueueNode which can be used for MpscLinkedQueueNodes that use Recycler

These changes are based on @belliottsmith 's work that was part of #2504.

Result:

Huge increase in performance.

4.0 branch without this commit:

Benchmark                                                (size)   Mode   Samples        Score  Score error    Units
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    00000  thrpt        20 116026994.130  2763381.305    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    00256  thrpt        20 110823170.627  3007221.464    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    01024  thrpt        20 118290272.413  7143962.304    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    04096  thrpt        20 120560396.523  6483323.228    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    16384  thrpt        20 114726607.428  2960013.108    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    65536  thrpt        20 119385917.899  3172913.684    ops/s
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 297.617 sec - in io.netty.microbench.internal.RecyclableArrayListBenchmark

4.0 branch with this commit:

Benchmark                                                (size)   Mode   Samples        Score  Score error    Units
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    00000  thrpt        20 204158855.315  5031432.145    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    00256  thrpt        20 205179685.861  1934137.841    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    01024  thrpt        20 209906801.437  8007811.254    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    04096  thrpt        20 214288320.053  6413126.689    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    16384  thrpt        20 215940902.649  7837706.133    ops/s
i.n.m.i.RecyclableArrayListBenchmark.recycleSameThread    65536  thrpt        20 211141994.206  5017868.542    ops/s
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 297.648 sec - in io.netty.microbench.internal.RecyclableArrayListBenchmark
2014-06-24 10:47:38 +02:00