generic-library/libzmq
1
0
Fork 0
mirror of https://github.com/zeromq/libzmq.git synced 2025-10-26 02:18:06 +01:00
Code Issues Projects Releases Wiki Activity

Problem: enormous memory increase due to zero copy decoding

Browse Source 
The zero copy decoding strategy implemented for 4.2.0 can lead to a large
increase of main memory usage in some cases (I have seen one program go up to
40G from 10G after upgrading from 4.1.4). This commit adds a new option to
contexts, called ZMQ_ZERO_COPY_RECV, which allows one to switch to the old
decoding strategy.
This commit is contained in:
Stefan Kaes
2018-03-05 13:19:20 +01:00
parent d54633add1
commit fcbd2a5710
16 changed files with 112 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/stream_engine.cpp
View File

@@ -636,15 +636,15 @@ bool zmq::stream_engine_t::handshake ()
encoder = new (std::nothrow) v2_encoder_t (out_batch_size);
alloc_assert (encoder);
decoder =
new (std::nothrow) v2_decoder_t (in_batch_size, options.maxmsgsize);
decoder = new (std::nothrow)
v2_decoder_t (in_batch_size, options.maxmsgsize, options.zero_copy);
alloc_assert (decoder);
} else {
encoder = new (std::nothrow) v2_encoder_t (out_batch_size);
alloc_assert (encoder);
decoder =
new (std::nothrow) v2_decoder_t (in_batch_size, options.maxmsgsize);
decoder = new (std::nothrow)
v2_decoder_t (in_batch_size, options.maxmsgsize, options.zero_copy);
alloc_assert (decoder);
if (options.mechanism == ZMQ_NULL