mirror of https://github.com/ossrs/srs.git
add performance header to control options for performance. 2.0.50
winlin
10 years ago
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/*
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The MIT License (MIT)
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Copyright (c) 2013-2014 winlin
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <srs_core_performance.hpp>
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@ -0,0 +1,71 @@
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/*
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The MIT License (MIT)
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Copyright (c) 2013-2014 winlin
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SRS_CORE_PERFORMANCE_HPP
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#define SRS_CORE_PERFORMANCE_HPP
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/*
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#include <srs_core_performance.hpp>
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*/
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#include <srs_core.hpp>
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/**
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* this file defines the perfromance options.
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*/
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/**
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* to improve read performance, merge some packets then read,
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* when it on and read small bytes, we sleep to wait more data.,
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* that is, we merge some data to read together.
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* @see https://github.com/winlinvip/simple-rtmp-server/issues/241
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* @remark other macros:
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* SOCKET_MAX_BUF, the max size of user-space buffer.
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* SOCKET_READ_SIZE, the user space buffer for socket.
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* SRS_MR_MAX_BITRATE_KBPS, the kbps of stream for system to guess the sleep time.
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* SRS_MR_AVERAGE_BITRATE_KBPS, the average kbps of system.
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* SRS_MR_MIN_BITRATE_KBPS, the min kbps of system.
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* SRS_MR_MAX_SLEEP_MS, the max sleep time, the latency+ when sleep+.
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* SRS_MR_SMALL_BYTES, sleep when got small bytes, the latency+ when small+.
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* SRS_MR_SMALL_PERCENT, to calc the small bytes = SRS_MR_SOCKET_BUFFER/percent.
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* SRS_MR_SOCKET_BUFFER, the socket buffer to set fd.
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* @remark the actual socket buffer used to set the buffer user-space size.
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* buffer = min(SOCKET_MAX_BUF, SRS_MR_SOCKET_BUFFER, SOCKET_READ_SIZE)
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* small bytes = max(buffer/SRS_MR_SMALL_PERCENT, SRS_MR_SMALL_BYTES)
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* sleep = calc the sleep by kbps and buffer.
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* @remark the main merged-read algorithm:
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* while true:
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* nread = read from socket.
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* sleep if nread < small bytes
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* process bytes.
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* @example, for the default settings, this algorithm will use:
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* socket buffer set to 64KB,
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* user space buffer set to 64KB,
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* buffer=65536B, small=4096B, sleep=780ms
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* that is, when got nread bytes smaller than 4KB, sleep(780ms).
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*/
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#define SRS_PERF_MERGED_READ
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#undef SRS_PERF_MERGED_READ
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#endif
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