支持rtmp协议流媒体服务器，初步测试30000+，供学习用go写高并发高性能程序的同学参考
go1.6+
- 通过消息通知共享数据，锁的开销没想象的那么大
- 对象复用，减少垃圾收集
- 减少系统调用，通过数据包合并一次尽量发送多帧，本程序以GOP对齐后一次发送
- 减少对象复制，本程序没有彻底实现，应该还有优化空间
- 读消息时一次系统调用可以读取更多消息
- 减少数据包复制，可以通过引用计数实现
- 可能哪里还有些内存泄漏
- 2颗E5-2650 v2，64G内存，单机测试（因为没有万兆网络环境）
- 推流工具xsplit2.7，关键帧间隔2秒，混合码流900kbps，CBR
- 负载工具 srs-bench/sb_rtmp_load_fast
- 每次5000并发，共跑6个sb_rtmp_load_fast进程，每进程占用100%
- 因为是本机测试，所以软中断和负载程序占用了很大一部分CPU，所以有万兆环境+多队列万兆网卡的性能应该还可以进一步提升
- 测试时通过vlc观看不卡，中间关闭后再开也不卡，多个vlc播放器之间延时几乎没有
top - 13:18:15 up 16 days, 23:42, 11 users, load average: 76.44, 56.27, 53.53
Tasks: 942 total, 3 running, 935 sleeping, 4 stopped, 0 zombie
Cpu0 : 19.6%us, 15.4%sy, 0.0%ni, 61.8%id, 0.0%wa, 0.0%hi, 3.3%si, 0.0%st
Cpu1 : 24.9%us, 13.4%sy, 0.0%ni, 57.4%id, 0.0%wa, 0.0%hi, 4.3%si, 0.0%st
Cpu2 : 17.8%us, 14.5%sy, 0.0%ni, 64.7%id, 0.0%wa, 0.0%hi, 3.0%si, 0.0%st
Cpu3 : 20.6%us, 12.0%sy, 0.0%ni, 64.2%id, 0.0%wa, 0.0%hi, 3.2%si, 0.0%st
Cpu4 : 17.4%us, 13.1%sy, 0.0%ni, 66.7%id, 0.0%wa, 0.0%hi, 2.8%si, 0.0%st
Cpu5 : 15.3%us, 23.1%sy, 0.0%ni, 59.0%id, 0.0%wa, 0.0%hi, 2.6%si, 0.0%st
Cpu6 : 16.5%us, 13.3%sy, 0.0%ni, 67.0%id, 0.0%wa, 0.0%hi, 3.2%si, 0.0%st
Cpu7 : 18.9%us, 32.4%sy, 0.0%ni, 45.6%id, 0.0%wa, 0.0%hi, 3.0%si, 0.0%st
Cpu8 : 20.3%us, 14.1%sy, 0.0%ni, 61.6%id, 0.0%wa, 0.0%hi, 4.0%si, 0.0%st
Cpu9 : 23.4%us, 11.7%sy, 0.0%ni, 62.3%id, 0.0%wa, 0.0%hi, 2.6%si, 0.0%st
Cpu10 : 18.9%us, 15.6%sy, 0.0%ni, 62.2%id, 0.0%wa, 0.0%hi, 3.3%si, 0.0%st
Cpu11 : 19.4%us, 14.1%sy, 0.0%ni, 63.4%id, 0.0%wa, 0.0%hi, 3.2%si, 0.0%st
Cpu12 : 31.3%us, 11.9%sy, 0.0%ni, 54.0%id, 0.0%wa, 0.0%hi, 2.9%si, 0.0%st
Cpu13 : 22.0%us, 10.8%sy, 0.0%ni, 63.9%id, 0.0%wa, 0.0%hi, 3.3%si, 0.0%st
Cpu14 : 17.1%us, 16.2%sy, 0.0%ni, 63.8%id, 0.0%wa, 0.0%hi, 2.9%si, 0.0%st
Cpu15 : 20.3%us, 19.6%sy, 0.0%ni, 57.0%id, 0.0%wa, 0.0%hi, 3.1%si, 0.0%st
Cpu16 : 25.9%us, 20.3%sy, 0.0%ni, 50.7%id, 0.0%wa, 0.0%hi, 3.1%si, 0.0%st
Cpu17 : 17.2%us, 28.8%sy, 0.0%ni, 52.1%id, 0.0%wa, 0.0%hi, 1.9%si, 0.0%st
Cpu18 : 23.8%us, 35.2%sy, 0.0%ni, 38.1%id, 0.0%wa, 0.0%hi, 2.9%si, 0.0%st
Cpu19 : 26.6%us, 13.8%sy, 0.0%ni, 56.2%id, 0.0%wa, 0.0%hi, 3.4%si, 0.0%st
Cpu20 : 21.5%us, 13.8%sy, 0.0%ni, 61.9%id, 0.0%wa, 0.0%hi, 2.8%si, 0.0%st
Cpu21 : 18.4%us, 25.6%sy, 0.0%ni, 53.1%id, 0.0%wa, 0.0%hi, 3.0%si, 0.0%st
Cpu22 : 14.9%us, 33.7%sy, 0.0%ni, 49.3%id, 0.0%wa, 0.0%hi, 2.2%si, 0.0%st
Cpu23 : 18.4%us, 12.3%sy, 0.0%ni, 65.8%id, 0.0%wa, 0.0%hi, 3.5%si, 0.0%st
Cpu24 : 19.3%us, 13.1%sy, 0.0%ni, 64.9%id, 0.0%wa, 0.0%hi, 2.6%si, 0.0%st
Cpu25 : 20.6%us, 22.2%sy, 0.0%ni, 54.7%id, 0.0%wa, 0.0%hi, 2.6%si, 0.0%st
Cpu26 : 17.9%us, 50.0%sy, 0.0%ni, 29.8%id, 0.0%wa, 0.0%hi, 2.3%si, 0.0%st
Cpu27 : 15.4%us, 27.1%sy, 0.0%ni, 55.6%id, 0.0%wa, 0.0%hi, 1.9%si, 0.0%st
Cpu28 : 31.7%us, 9.9%sy, 0.0%ni, 55.8%id, 0.0%wa, 0.0%hi, 2.6%si, 0.0%st
Cpu29 : 34.8%us, 11.8%sy, 0.0%ni, 50.9%id, 0.0%wa, 0.0%hi, 2.4%si, 0.0%st
Cpu30 : 20.2%us, 14.7%sy, 0.0%ni, 62.1%id, 0.0%wa, 0.0%hi, 2.9%si, 0.0%st
Cpu31 : 21.9%us, 13.0%sy, 0.0%ni, 61.9%id, 0.0%wa, 0.0%hi, 3.3%si, 0.0%st
Mem: 65923556k total, 39068692k used, 26854864k free, 251764k buffers
Swap: 25164792k total, 65988k used, 25098804k free, 4924036k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
11589 root 20 0 22.8g 16g 4200 S 971.5 26.0 145:18.09 bbllive
sar -n DEV 1
01:18:32 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:33 PM lo 302942.99 302942.99 5223440.74 5223440.74 0.00 0.00 0.00
01:18:33 PM em1 571.03 670.09 260.95 559.62 0.00 0.00 0.93
01:18:33 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:33 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:33 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:33 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:33 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:33 PM bond0 571.03 670.09 260.95 559.62 0.00 0.00 0.93
01:18:33 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:33 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:34 PM lo 44640.74 44640.74 767318.07 767318.07 0.00 0.00 0.00
01:18:34 PM em1 661.73 716.05 294.10 405.78 0.00 0.00 1.23
01:18:34 PM em2 1.23 0.00 0.10 0.00 0.00 0.00 1.23
01:18:34 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:34 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:34 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:34 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:34 PM bond0 662.96 716.05 294.20 405.78 0.00 0.00 2.47
01:18:34 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:34 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:35 PM lo 268190.76 268190.76 4569484.61 4569484.61 0.00 0.00 0.00
01:18:35 PM em1 536.97 631.93 242.67 527.20 0.00 0.00 0.00
01:18:35 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:35 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:35 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:35 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:35 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:35 PM bond0 536.97 631.93 242.67 527.20 0.00 0.00 0.00
01:18:35 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:35 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:36 PM lo 41169.00 41169.00 699223.45 699223.45 0.00 0.00 0.00
01:18:36 PM em1 595.00 655.00 316.24 338.96 0.00 0.00 0.00
01:18:36 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:36 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:36 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:36 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:36 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:36 PM bond0 595.00 655.00 316.24 338.96 0.00 0.00 0.00
01:18:36 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:36 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:37 PM lo 340989.11 340989.11 5565256.38 5565256.38 0.00 0.00 0.00
01:18:37 PM em1 619.80 778.22 246.12 677.88 0.00 0.00 0.00
01:18:37 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:37 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:37 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:37 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:37 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:37 PM bond0 619.80 778.22 246.12 677.88 0.00 0.00 0.00
01:18:37 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:37 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:38 PM lo 274824.00 274824.00 3943548.07 3943548.07 0.00 0.00 0.00
01:18:38 PM em1 683.00 746.00 354.36 543.61 0.00 0.00 0.00
01:18:38 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:38 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:38 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:38 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:38 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:38 PM bond0 683.00 746.00 354.36 543.61 0.00 0.00 0.00
01:18:38 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:38 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:39 PM lo 166.67 166.67 481.67 481.67 0.00 0.00 0.00
01:18:39 PM em1 588.89 631.31 308.04 368.66 0.00 0.00 0.00
01:18:39 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:39 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:39 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:39 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:39 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:39 PM bond0 588.89 631.31 308.04 368.66 0.00 0.00 0.00
01:18:39 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:39 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:40 PM lo 382172.00 382172.00 6239203.48 6239203.48 0.00 0.00 0.00
01:18:40 PM em1 562.00 677.00 215.53 585.04 0.00 0.00 0.00
01:18:40 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:40 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:40 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:40 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:40 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:40 PM bond0 562.00 677.00 215.53 585.04 0.00 0.00 0.00
01:18:40 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:40 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:41 PM lo 40381.91 40381.91 657320.67 657320.67 0.00 0.00 0.00
01:18:41 PM em1 690.43 732.98 343.89 388.25 0.00 0.00 0.00
01:18:41 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:41 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:41 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:41 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:41 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:41 PM bond0 690.43 732.98 343.89 388.25 0.00 0.00 0.00
01:18:41 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:41 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:42 PM lo 346065.42 346065.42 6021440.04 6021440.04 0.00 0.00 0.00
01:18:42 PM em1 532.71 620.56 227.57 510.71 0.00 0.00 0.00
01:18:42 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:42 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:42 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:42 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:42 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:42 PM bond0 532.71 620.56 227.57 510.71 0.00 0.00 0.00
01:18:42 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:42 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:43 PM lo 2684.85 2684.85 45764.79 45764.79 0.00 0.00 0.00
01:18:43 PM em1 628.28 627.27 300.89 313.32 0.00 0.00 0.00
01:18:43 PM em2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:43 PM em3 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:43 PM em4 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:43 PM p7p1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:43 PM p7p2 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:43 PM bond0 628.28 627.27 300.89 313.32 0.00 0.00 0.00
01:18:43 PM bond1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
01:18:43 PM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
01:18:44 PM lo 332971.29 332971.29 6172549.32 6172549.32 0.00 0.00 0.00
13:19:40 INFO Gop live/c 994 154
13:19:40 INFO players live/c 30001
13:19:42 INFO Gop live/c 995 153
13:19:42 INFO players live/c 30001
13:19:44 INFO Gop live/c 996 144
13:19:44 INFO players live/c 30001
13:19:46 INFO Gop live/c 997 154
13:19:46 INFO players live/c 30001