Commit Graph

661 Commits

Author SHA1 Message Date
Dmitriy Dumanskiy
a4d8f930af small performance fixes : unnecessary unboxing operations removed
Motivation :

Unboxing operations allocate unnecessary objects when it could be avoided.

Modifications:
Replaced Float.valueOf with Number.parseFloat where possible.

Result:

Less unnecessary objects allocations.
2016-08-01 07:10:25 +02:00
Norman Maurer
cb7cf4491c [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
Norman Maurer
9466b32d05 [maven-release-plugin] prepare release netty-4.1.4.Final 2016-07-27 13:16:59 +02:00
Norman Maurer
f25f1f255d No need to do a memory copy to verify snappy identifier
Motivation:

We are currently doing a memory copy to verify the snapy version. This is not needed.

Modifications:

Remove memory copy and just compare byte per byte.

Result:

Less memory copies and allocations
2016-07-24 20:39:46 +02:00
Norman Maurer
7db3e01498 Ensure uncompressed ByteBuf is released when an exception happens during decoding.
Motivation:

We need to ensure the uncompressed ByteBuf is released if an exception happens while calling decode(...). If we miss to do so we leak buffers.

Modifications:

Correctly release buffer on exception.

Result:

No more memory leak.
2016-07-24 20:28:40 +02:00
Norman Maurer
3ebbd96820 Remove memory copies when doing CRC32 processing in JdkZlibDecoder
Motivation:

We not need to do any memory copies when doing CRC32 processing.

Modifications:

Use ByteBufChecksum to eliminate memory copies.

Result:

Less memory copies.
2016-07-22 20:02:12 +02:00
Norman Maurer
87551fc751 Remove memory copy when checksum non heap backed ByteBuf implementations using Snappy
Motivation:

We should try to minimize memory copies whenever possible.

Modifications:

- Refactor ByteBufChecksum to work with heap and direct ByteBuf always
- Remove memory copy in Snappy by let Crc32c extend ByteBufChecksum

Result:

Less memory copies when using Snappy
2016-07-22 09:11:43 +02:00
Norman Maurer
9151739577 Remove unnessary memory copy when doing Bzip2 encoding
Motivation:

We did an unessary memory copy when doing bzip2 encoding.

Modifications:

Remove memory copy and just use a ByteProcessor.

Result:

Less memory copies and so faster.
2016-07-21 11:39:56 +02:00
Norman Maurer
fa84e86f78 Lz4FrameEncoder should prefer direct buffers for its output.
Motivation:

We should prefer direct buffers for the output of Lz4FrameEncoder as this is what is needed for writing to the socket.

Modification:

Use direct buffers for the output

Result:

Less memory copies needed.
2016-07-21 11:36:32 +02:00
Norman Maurer
bb3c4a43d8 Lz4FrameDecoder should reduce memory copies whenever possible
Motivation:

When the user constructs Lz4FrameDecoder with a Checksum implementation like CRC32 or Adler32 and uses Java8 we can directly use a ByteBuffer to do the checksum work. This way we can eliminate memory copies.

Modifications:

Detect if ByteBuffer can be used for checksum work and if so reduce memory copies.

Result:

Less memory copies when using JDK8
2016-07-21 11:34:31 +02:00
Norman Maurer
047f6aed28 [maven-release-plugin] prepare for next development iteration 2016-07-15 09:09:13 +02:00
Norman Maurer
b2adea87a0 [maven-release-plugin] prepare release netty-4.1.3.Final 2016-07-15 09:08:53 +02:00
Norman Maurer
4676a2271c [maven-release-plugin] prepare for next development iteration 2016-07-01 10:33:32 +02:00
Norman Maurer
ad270c02b9 [maven-release-plugin] prepare release netty-4.1.2.Final 2016-07-01 09:07:40 +02:00
Scott Mitchell
6af56ffe76 HPACK Encoder headerFields improvements
Motivation:
HPACK Encoder has a data structure which is similar to a previous version of DefaultHeaders. Some of the same improvements can be made.

Motivation:
- Enforce the restriction that the Encoder's headerFields length must be a power of two so we can use masking instead of modulo
- Use AsciiString.hashCode which already has optimizations instead of having yet another hash code algorithm in Encoder

Result:
Fixes https://github.com/netty/netty/issues/5357
2016-06-30 09:00:12 -07:00
Scott Mitchell
a7f7d9c8e0 Remove unsafe char[] access in PlatformDependent
Motivation:
PlatformDependent attempts to use reflection to get the underlying char[] (or byte[]) from String objects. This is fragile as if the String implementation does not utilize the full array, and instead uses a subset of the array, this optimization is invalid. OpenJDK6 and some earlier versions of OpenJDK7 String have the capability to use a subsection of the underlying char[].

Modifications:
- PlatformDependent should not attempt to use the underlying array from String (or other data types) via reflection

Result:
PlatformDependent hash code generation for CharSequence does not depend upon specific JDK implementation details.
2016-06-30 08:58:28 -07:00
Guido Medina
f0a5ee068f Update dependencies and plugins to latest possible versions.
Motivation:
It is good to have used dependencies and plugins up-to-date to fix any undiscovered bug fixed by the authors.

Modification:
Scanned dependencies and plugins and carefully updated one by one.

Result:
Dependencies and plugins are up-to-date.
2016-06-27 13:35:35 +02:00
Guido Medina
c3abb9146e Use shaded dependency on JCTools instead of copy and paste
Motivation:
JCTools supports both non-unsafe, unsafe versions of queues and JDK6 which allows us to shade the library in netty-common allowing it to stay "zero dependency".

Modifications:
- Remove copy paste JCTools code and shade the library (dependencies that are shaded should be removed from the <dependencies> section of the generated POM).
- Remove usage of OneTimeTask and remove it all together.

Result:
Less code to maintain and easier to update JCTools and less GC pressure as the queue implementation nt creates so much garbage
2016-06-10 13:19:45 +02:00
Norman Maurer
4dec7f11b7 [maven-release-plugin] prepare for next development iteration 2016-06-07 18:52:34 +02:00
Norman Maurer
cf670fab75 [maven-release-plugin] prepare release netty-4.1.1.Final 2016-06-07 18:52:22 +02:00
Norman Maurer
dc816e9807 Ensure we null out cumulation buffer before fire through the pipeline in handlerRemoved(...)
Motivation:

We should ensure we null out the cumulation buffer before we fire it through the pipleine in handlerRemoved(...) as in theory it could be possible that another method is triggered as result of the fireChannelRead(...) or fireChannelReadComplete() that will try to access the cumulation.

Modifications:

Null out cumulation buffer early in handlerRemoved(...)

Result:

No possible to access the cumulation buffer that was already handed over.
2016-06-04 09:18:07 +02:00
buchgr
af7b0a04a0 Fix DefaultHeaders.toString() for keys with multiple values.
Motivation:

For example,

DefaultHttp2Headers headers = new DefaultHttp2Headers();
headers.add("key1", "value1");
headers.add("key1", "value2");
headers.add("key1", "value3");
headers.add("key2", "value4");

produces:

DefaultHttp2Headers[key1: value1key1: value2key1: value3, key2: value4]

while correctly it should be

DefaultHttp2Headers[key1: value1, key1: value2, key1: value3, key2: value4]

Modifications:

Change the toString() method to produce the beforementioned output.

Result:

toString() format is correct also for keys with multiple values.
2016-06-02 17:24:51 +02:00
Norman Maurer
6ca49d1336 [maven-release-plugin] prepare for next development iteration 2016-05-25 19:16:44 +02:00
Norman Maurer
446b38db52 [maven-release-plugin] prepare release netty-4.1.0.Final 2016-05-25 19:14:15 +02:00
Norman Maurer
7b25402e80 Add CompositeByteBuf.addComponent(boolean ...) method to simplify usage
Motivation:

At the moment the user is responsible to increase the writer index of the composite buffer when a new component is added. We should add some methods that handle this for the user as this is the most popular usage of the composite buffer.

Modifications:

Add new methods that autoamtically increase the writerIndex when buffers are added.

Result:

Easier usage of CompositeByteBuf.
2016-05-21 19:52:16 +02:00
Norman Maurer
e59d0e9efb Introduce CodecOutputList to reduce overhead of encoder/decoder
Motivation:

99dfc9ea79 introduced some code that will more frequently try to forward messages out of the list of decoded messages to reduce latency and memory footprint. Unfortunally this has the side-effect that RecycleableArrayList.clear() will be called more often and so introduce some overhead as ArrayList will null out the array on each call.

Modifications:

- Introduce a CodecOutputList which allows to not null out the array until we recycle it and also allows to access internal array with extra range checks.
- Add benchmark that add elements to different List implementations and clear them

Result:

Less overhead when decode / encode messages.

Benchmark                                     (elements)   Mode  Cnt         Score        Error  Units
CodecOutputListBenchmark.arrayList                     1  thrpt   20  24853764.609 ± 161582.376  ops/s
CodecOutputListBenchmark.arrayList                     4  thrpt   20  17310636.508 ± 930517.403  ops/s
CodecOutputListBenchmark.codecOutList                  1  thrpt   20  26670751.661 ± 587812.655  ops/s
CodecOutputListBenchmark.codecOutList                  4  thrpt   20  25166421.089 ± 166945.599  ops/s
CodecOutputListBenchmark.recyclableArrayList           1  thrpt   20  24565992.626 ± 210017.290  ops/s
CodecOutputListBenchmark.recyclableArrayList           4  thrpt   20  18477881.775 ± 157003.777  ops/s

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 246.748 sec - in io.netty.handler.codec.CodecOutputListBenchmark
2016-05-20 09:12:07 +02:00
Trustin Lee
3a9f472161 Make retained derived buffers recyclable
Related: #4333 #4421 #5128

Motivation:

slice(), duplicate() and readSlice() currently create a non-recyclable
derived buffer instance. Under heavy load, an application that creates a
lot of derived buffers can put the garbage collector under pressure.

Modifications:

- Add the following methods which creates a non-recyclable derived buffer
  - retainedSlice()
  - retainedDuplicate()
  - readRetainedSlice()
- Add the new recyclable derived buffer implementations, which has its
  own reference count value
- Add ByteBufHolder.retainedDuplicate()
- Add ByteBufHolder.replace(ByteBuf) so that..
  - a user can replace the content of the holder in a consistent way
  - copy/duplicate/retainedDuplicate() can delegate the holder
    construction to replace(ByteBuf)
- Use retainedDuplicate() and retainedSlice() wherever possible
- Miscellaneous:
  - Rename DuplicateByteBufTest to DuplicatedByteBufTest (missing 'D')
  - Make ReplayingDecoderByteBuf.reject() return an exception instead of
    throwing it so that its callers don't need to add dummy return
    statement

Result:

Derived buffers are now recycled when created via retainedSlice() and
retainedDuplicate() and derived from a pooled buffer
2016-05-17 11:16:13 +02:00
Norman Maurer
9f5eb7d698 Add CharSequence operations to ByteBuf
Motivation:

Often users either need to read or write CharSequences to a ByteBuf. We should add methods for this to ByteBuf as we can do some optimizations for this depending on the implementation.

Modifications:

Add setCharSequence, writeCharSequence, getCharSequence and readCharSequence

Result:

Easier reading / writing of CharSequence with ByteBuf.
2016-05-06 16:52:00 +02:00
Xiaoyan Lin
ce1ae0eb8b Handle the backslash with double quote in JsonObjectDecoder
Motivation:

The double quote may be escaped in a JSON string, but JsonObjectDecoder doesn't handle it. Resolves #5157.

Modifications:

Don't end a JSON string when processing an escaped double quote.

Result:

JsonObjectDecoder can handle backslash and double quote in a JSON string correctly.
2016-05-04 14:04:39 +02:00
Norman Maurer
d698746609 Add ByteBuf.asReadOnly()
Motivation:

We lately added ByteBuf.isReadOnly() which allows to detect if a buffer is read-only or not. We should add ByteBuf.asReadOnly() to allow easily access a read-only version of a buffer.

Modifications:

- Add ByteBuf.asReadOnly()
- Deprecate Unpooled.unmodifiableBuffer(Bytebuf)

Result:

More consistent api.
2016-04-14 10:51:20 +02:00
Norman Maurer
6108b7297b Correctly handle ChannelInputShutdownEvent in ReplayingDecoder
Motivation:

b112673554 added ChannelInputShutdownEvent support to ByteToMessageDecoder but missed updating the code for ReplayingDecoder. This has the effect:

- If a ChannelInputShutdownEvent is fired ByteToMessageDecoder (the super-class of ReplayingDecoder) will call the channelInputClosed(...) method which will pass the incorrect buffer to the decode method of ReplayingDecoder.

Modifications:

Share more code between ByteToMessageDEcoder and ReplayingDecoder and so also support ChannelInputShutdownEvent correctly in ReplayingDecoder

Result:

ChannelInputShutdownEvent is corrrectly handle in ReplayingDecoder as well.
2016-04-14 10:20:58 +02:00
Norman Maurer
7c734fcf73 Fix resource leak in tests introduced by 69070c37ba. 2016-04-14 10:13:55 +02:00
Norman Maurer
1861461db2 [#4635] Stop decoding if decoder was removed in ReplayingDecoder
We need to check if this handler was removed before continuing with decoding.
If it was removed, it is not safe to continue to operate on the buffer. This was already fixed for ByteToMessageDecoder in 4cdbe39284  but missed for ReplayingDecoder.

Modifications:

Check if decoder was removed after fire messages through the pipeline.

Result:

No illegal buffer access when decoder was removed.
2016-04-14 08:25:59 +02:00
Trustin Lee
0b078314b2 Add ByteBuf.isReadOnly()
Motivation:

It is sometimes useful to determins if a buffer is read-only.

Modifications:

Add ByteBuf.isReadOnly()

Result:

One more feature
2016-04-13 21:41:27 +09:00
Norman Maurer
572bdfb494 [maven-release-plugin] prepare for next development iteration 2016-04-10 08:37:18 +02:00
Norman Maurer
c6121a6f49 [maven-release-plugin] prepare release netty-4.1.0.CR7 2016-04-10 08:36:56 +02:00
Norman Maurer
6e919f70f8 [maven-release-plugin] rollback the release of netty-4.1.0.CR7 2016-04-09 22:13:44 +02:00
Norman Maurer
4cdd51509a [maven-release-plugin] prepare release netty-4.1.0.CR7 2016-04-09 22:05:34 +02:00
Norman Maurer
d081851156 Remove ByteBuf.readBytes(int) calls when possible
Motivation:

We use ByteBuf.readBytes(int) in various places where we could either remove it completely or use readSlice(int).retain().

Modifications:

- Remove ByteBuf.readBytes(int) when possible or replace by readSlice(int).retain().

Result:

Faster code.
2016-04-09 18:40:57 +02:00
Trustin Lee
3b941c2a7c [maven-release-plugin] prepare for next development iteration 2016-04-02 01:25:05 -04:00
Trustin Lee
7368ccc539 [maven-release-plugin] prepare release netty-4.1.0.CR6 2016-04-02 01:24:55 -04:00
Norman Maurer
cee38ed2b6 [maven-release-plugin] prepare for next development iteration 2016-03-29 16:45:13 +02:00
Norman Maurer
9cd9e7daeb [maven-release-plugin] prepare release netty-4.1.0.CR5 2016-03-29 16:44:33 +02:00
Norman Maurer
28d03adbfe [maven-release-plugin] prepare for next development iteration 2016-03-21 11:51:50 +01:00
Norman Maurer
4653dc1d05 [maven-release-plugin] prepare release netty-4.1.0.CR4 2016-03-21 11:51:12 +01:00
Xiaoyan Lin
01835fdf18 Add LineEncoder to append a line separator automatically
Motivation:

See #1811

Modifications:

Add LineEncoder and LineSeparator

Result:

The user can use LineEncoder to write a String with a line separator automatically
2016-03-16 20:31:01 +01:00
Xiaoyan Lin
4fb585965c Add DatagramPacketEncoder and DatagramPacketDecoder
Motivation:

UDP-oriented codec reusing the existing encoders and decoders would be helpful. See #1350

Modifications:

Add DatagramPacketEncoder and DatagramPacketDecoder to reuse the existing encoders and decoders.

Result:

People can use DatagramPacketEncoder and DatagramPacketDecoder to wrap existing encoders and decoders to create UDP-oriented codec.
2016-03-14 12:14:57 +01:00
Norman Maurer
9aac6dac2e [#4386] ByteToMessage.decodeLast(...) should not call decode(...) if buffer is empty.
Motivation:

If the input buffer is empty we should not have decodeLast(...) call decode(...) as the user may not expect this.

Modifications:

- Not call decode(...) in decodeLast(...) if the input buffer is empty.
- Add testcases.

Result:

decodeLast(...) will not call decode(...) if input buffer is empty.
2016-03-01 08:42:26 +01:00
Sergey Polovko
a2e113b987 Use ByteProcessor.FIND_LF to find end of line
Motivation:

Each call of ByteBuf.getByte(int) method does boundary checking. This can be eliminated by using ByteBuf.forEachByte(ByteProcessor) method and ByteProcessor.FIND_LF processor.

Modifications:

Find end of line with ByteProcessor.FIND_LF

Result:

A little better performance of LineBasedFrameDecoder.
2016-02-29 09:38:36 +01:00
Norman Maurer
0bea10b0b0 [#4892] Make Snappy class public
Motivation:

Some people may want to use the Snappy class directly to encode / decode ByteBufs.

Modifications:

Make the Snappy class public and final.

Result:

Easier for people to reuse parts of Netty.
2016-02-26 12:15:10 +01:00