Ardupilot Rpanion 4GLTE 网络性能测试 - 国内中转

2024-05-14 23:44

本文主要是介绍Ardupilot Rpanion 4GLTE 网络性能测试 - 国内中转,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!

Ardupilot Rpanion 4GLTE 网络性能测试 - 国内中转

  • 1. 源由
  • 2. 视频效果
    • 2.1 整体刷新率不高
    • 2.2 网络延迟可接受
    • 2.3 带宽增加丢包明显
    • 2.4 实测效果流畅
  • 3. 总结

1. 源由

上一次,由于ZeroTier使用了国外服务器,延迟~ 569 ms,花屏、卡顿。

本着不折腾到底,誓不罢休的精神,本次我们将ZeroTier切换到了国内中转服务器。

在这里插入图片描述

2. 视频效果

最终视频效果是王道!来我们看下效果。

Ardupilot Rpanion 4GLTE-4GLTE Domestic Routing Copter

2.1 整体刷新率不高

一般都能到59FPS,但是显示器今天不知道怎么只有30FPS,有的时候都不到。
刷新率越差,误差就越大。

2.2 网络延迟可接受

ping延迟不高,大约在[64ms, 306ms],平均117ms。

ping -t 192.168.235.73Pinging 192.168.235.73 with 32 bytes of data:
Reply from 192.168.235.73: bytes=32 time=103ms TTL=64
Reply from 192.168.235.73: bytes=32 time=102ms TTL=64
Reply from 192.168.235.73: bytes=32 time=109ms TTL=64
Reply from 192.168.235.73: bytes=32 time=128ms TTL=64
Reply from 192.168.235.73: bytes=32 time=127ms TTL=64
Reply from 192.168.235.73: bytes=32 time=154ms TTL=64
Reply from 192.168.235.73: bytes=32 time=113ms TTL=64
Reply from 192.168.235.73: bytes=32 time=94ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=131ms TTL=64
Reply from 192.168.235.73: bytes=32 time=120ms TTL=64
Reply from 192.168.235.73: bytes=32 time=121ms TTL=64
Reply from 192.168.235.73: bytes=32 time=101ms TTL=64
Reply from 192.168.235.73: bytes=32 time=115ms TTL=64
Reply from 192.168.235.73: bytes=32 time=129ms TTL=64
Reply from 192.168.235.73: bytes=32 time=112ms TTL=64
Reply from 192.168.235.73: bytes=32 time=192ms TTL=64
Reply from 192.168.235.73: bytes=32 time=101ms TTL=64
Reply from 192.168.235.73: bytes=32 time=105ms TTL=64
Reply from 192.168.235.73: bytes=32 time=99ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=97ms TTL=64
Reply from 192.168.235.73: bytes=32 time=91ms TTL=64
Reply from 192.168.235.73: bytes=32 time=115ms TTL=64
Reply from 192.168.235.73: bytes=32 time=102ms TTL=64
Reply from 192.168.235.73: bytes=32 time=169ms TTL=64
Reply from 192.168.235.73: bytes=32 time=113ms TTL=64
Reply from 192.168.235.73: bytes=32 time=119ms TTL=64
Reply from 192.168.235.73: bytes=32 time=83ms TTL=64
Reply from 192.168.235.73: bytes=32 time=108ms TTL=64
Reply from 192.168.235.73: bytes=32 time=147ms TTL=64
Reply from 192.168.235.73: bytes=32 time=132ms TTL=64
Reply from 192.168.235.73: bytes=32 time=111ms TTL=64
Reply from 192.168.235.73: bytes=32 time=156ms TTL=64
Reply from 192.168.235.73: bytes=32 time=113ms TTL=64
Reply from 192.168.235.73: bytes=32 time=100ms TTL=64
Reply from 192.168.235.73: bytes=32 time=114ms TTL=64
Reply from 192.168.235.73: bytes=32 time=127ms TTL=64
Reply from 192.168.235.73: bytes=32 time=99ms TTL=64
Reply from 192.168.235.73: bytes=32 time=85ms TTL=64
Reply from 192.168.235.73: bytes=32 time=88ms TTL=64
Reply from 192.168.235.73: bytes=32 time=113ms TTL=64
Reply from 192.168.235.73: bytes=32 time=111ms TTL=64
Reply from 192.168.235.73: bytes=32 time=106ms TTL=64
Reply from 192.168.235.73: bytes=32 time=116ms TTL=64
Reply from 192.168.235.73: bytes=32 time=117ms TTL=64
Reply from 192.168.235.73: bytes=32 time=104ms TTL=64
Reply from 192.168.235.73: bytes=32 time=105ms TTL=64
Reply from 192.168.235.73: bytes=32 time=99ms TTL=64
Reply from 192.168.235.73: bytes=32 time=101ms TTL=64
Reply from 192.168.235.73: bytes=32 time=111ms TTL=64
Reply from 192.168.235.73: bytes=32 time=86ms TTL=64
Reply from 192.168.235.73: bytes=32 time=144ms TTL=64
Reply from 192.168.235.73: bytes=32 time=81ms TTL=64
Reply from 192.168.235.73: bytes=32 time=79ms TTL=64
Reply from 192.168.235.73: bytes=32 time=94ms TTL=64
Reply from 192.168.235.73: bytes=32 time=132ms TTL=64
Reply from 192.168.235.73: bytes=32 time=92ms TTL=64
Reply from 192.168.235.73: bytes=32 time=96ms TTL=64
Reply from 192.168.235.73: bytes=32 time=121ms TTL=64
Reply from 192.168.235.73: bytes=32 time=133ms TTL=64
Reply from 192.168.235.73: bytes=32 time=127ms TTL=64
Reply from 192.168.235.73: bytes=32 time=97ms TTL=64
Reply from 192.168.235.73: bytes=32 time=127ms TTL=64
Reply from 192.168.235.73: bytes=32 time=135ms TTL=64
Reply from 192.168.235.73: bytes=32 time=96ms TTL=64
Reply from 192.168.235.73: bytes=32 time=120ms TTL=64
Reply from 192.168.235.73: bytes=32 time=101ms TTL=64
Reply from 192.168.235.73: bytes=32 time=135ms TTL=64
Reply from 192.168.235.73: bytes=32 time=144ms TTL=64
Reply from 192.168.235.73: bytes=32 time=107ms TTL=64
Reply from 192.168.235.73: bytes=32 time=112ms TTL=64
Reply from 192.168.235.73: bytes=32 time=139ms TTL=64
Reply from 192.168.235.73: bytes=32 time=81ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=116ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=162ms TTL=64
Reply from 192.168.235.73: bytes=32 time=119ms TTL=64
Reply from 192.168.235.73: bytes=32 time=120ms TTL=64
Reply from 192.168.235.73: bytes=32 time=306ms TTL=64
Reply from 192.168.235.73: bytes=32 time=143ms TTL=64
Reply from 192.168.235.73: bytes=32 time=80ms TTL=64
Reply from 192.168.235.73: bytes=32 time=94ms TTL=64
Reply from 192.168.235.73: bytes=32 time=91ms TTL=64
Reply from 192.168.235.73: bytes=32 time=156ms TTL=64
Reply from 192.168.235.73: bytes=32 time=114ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=129ms TTL=64
Reply from 192.168.235.73: bytes=32 time=184ms TTL=64
Reply from 192.168.235.73: bytes=32 time=110ms TTL=64
Reply from 192.168.235.73: bytes=32 time=135ms TTL=64
Reply from 192.168.235.73: bytes=32 time=144ms TTL=64
Reply from 192.168.235.73: bytes=32 time=141ms TTL=64
Reply from 192.168.235.73: bytes=32 time=79ms TTL=64
Reply from 192.168.235.73: bytes=32 time=78ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=128ms TTL=64
Reply from 192.168.235.73: bytes=32 time=206ms TTL=64
Reply from 192.168.235.73: bytes=32 time=129ms TTL=64
Reply from 192.168.235.73: bytes=32 time=126ms TTL=64
Reply from 192.168.235.73: bytes=32 time=154ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=94ms TTL=64
Reply from 192.168.235.73: bytes=32 time=125ms TTL=64
Reply from 192.168.235.73: bytes=32 time=90ms TTL=64
Reply from 192.168.235.73: bytes=32 time=129ms TTL=64
Reply from 192.168.235.73: bytes=32 time=111ms TTL=64
Reply from 192.168.235.73: bytes=32 time=113ms TTL=64
Reply from 192.168.235.73: bytes=32 time=106ms TTL=64
Reply from 192.168.235.73: bytes=32 time=94ms TTL=64
Reply from 192.168.235.73: bytes=32 time=92ms TTL=64
Reply from 192.168.235.73: bytes=32 time=96ms TTL=64
Reply from 192.168.235.73: bytes=32 time=114ms TTL=64
Reply from 192.168.235.73: bytes=32 time=122ms TTL=64
Reply from 192.168.235.73: bytes=32 time=93ms TTL=64
Reply from 192.168.235.73: bytes=32 time=165ms TTL=64
Reply from 192.168.235.73: bytes=32 time=135ms TTL=64
Reply from 192.168.235.73: bytes=32 time=185ms TTL=64
Reply from 192.168.235.73: bytes=32 time=124ms TTL=64
Reply from 192.168.235.73: bytes=32 time=64ms TTL=64
Reply from 192.168.235.73: bytes=32 time=89ms TTL=64
Reply from 192.168.235.73: bytes=32 time=84ms TTL=64
Reply from 192.168.235.73: bytes=32 time=90ms TTL=64
Reply from 192.168.235.73: bytes=32 time=112ms TTL=64
Reply from 192.168.235.73: bytes=32 time=92ms TTL=64
Reply from 192.168.235.73: bytes=32 time=90ms TTL=64
Reply from 192.168.235.73: bytes=32 time=78ms TTL=64
Reply from 192.168.235.73: bytes=32 time=129ms TTL=64Ping statistics for 192.168.235.73:Packets: Sent = 129, Received = 129, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:Minimum = 64ms, Maximum = 306ms, Average = 117ms
Control-C

2.3 带宽增加丢包明显

iperf情况很诡异:相较于《Ardupilot Rpanion iperf网络性能测试》情况更差,但是实际效果不错。

在这里插入图片描述

$ iperf -b 300pps -u -e -i 1 -l 1400  -c 192.168.235.63
------------------------------------------------------------
Client connecting to 192.168.235.63, UDP port 5001 with pid 2627 (1 flows)
Write buffer size: 1.37 KByte
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.235.73%ztjjfduqpe port 47594 connected with 192.168.235.63 port 5001
[ ID] Interval            Transfer     Bandwidth      Write/Err  PPS
[  3] 0.0000-1.0000 sec   410 KBytes  3.36 Mbits/sec  301/0      302 pps
[  3] 1.0000-2.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 2.0000-3.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 3.0000-4.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 4.0000-5.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 5.0000-6.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 6.0000-7.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 7.0000-8.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 8.0000-9.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 9.0000-10.0000 sec   410 KBytes  3.36 Mbits/sec  300/0      300 pps
[  3] 0.0000-10.0069 sec  4.01 MBytes  3.36 Mbits/sec  3005/0      300 pps
[  3] Sent 3005 datagrams
[  3] Server Report:
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3] 0.0000-10.0125 sec  4.01 MBytes  3.36 Mbits/sec   5.955 ms    0/ 3004 (0%)$ iperf -b 350pps -u -e -i 1 -l 1400  -c 192.168.235.63
------------------------------------------------------------
Client connecting to 192.168.235.63, UDP port 5001 with pid 2690 (1 flows)
Write buffer size: 1.37 KByte
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.235.73%ztjjfduqpe port 43876 connected with 192.168.235.63 port 5001
[ ID] Interval            Transfer     Bandwidth      Write/Err  PPS
[  3] 0.0000-1.0000 sec   479 KBytes  3.92 Mbits/sec  351/0      352 pps
[  3] 1.0000-2.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 2.0000-3.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 3.0000-4.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 4.0000-5.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 5.0000-6.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 6.0000-7.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 7.0000-8.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 8.0000-9.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 9.0000-10.0000 sec   479 KBytes  3.92 Mbits/sec  350/0      350 pps
[  3] 0.0000-10.0059 sec  4.68 MBytes  3.92 Mbits/sec  3505/0      350 pps
[  3] Sent 3505 datagrams
[  3] Server Report:
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3] 0.0000-10.0302 sec  4.68 MBytes  3.91 Mbits/sec   5.143 ms    0/ 3504 (0%)$ iperf -b 400pps -u -e -i 1 -l 1400  -c 192.168.235.63
------------------------------------------------------------
Client connecting to 192.168.235.63, UDP port 5001 with pid 2697 (1 flows)
Write buffer size: 1.37 KByte
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.235.73%ztjjfduqpe port 33690 connected with 192.168.235.63 port 5001
[ ID] Interval            Transfer     Bandwidth      Write/Err  PPS
[  3] 0.0000-1.0000 sec   547 KBytes  4.48 Mbits/sec  401/0      402 pps
[  3] 1.0000-2.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 2.0000-3.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 3.0000-4.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 4.0000-5.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 5.0000-6.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 6.0000-7.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 7.0000-8.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 8.0000-9.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 9.0000-10.0000 sec   547 KBytes  4.48 Mbits/sec  400/0      400 pps
[  3] 0.0000-10.0028 sec  5.34 MBytes  4.48 Mbits/sec  4004/0      400 pps
[  3] Sent 4004 datagrams
[  3] Server Report:
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3] 0.0000-10.0392 sec  5.34 MBytes  4.46 Mbits/sec   4.412 ms    0/ 4003 (0%)$ iperf -b 500pps -u -e -i 1 -l 1400  -c 192.168.235.63
------------------------------------------------------------
Client connecting to 192.168.235.63, UDP port 5001 with pid 2709 (1 flows)
Write buffer size: 1.37 KByte
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.235.73%ztjjfduqpe port 44078 connected with 192.168.235.63 port 5001
[ ID] Interval            Transfer     Bandwidth      Write/Err  PPS
[  3] 0.0000-1.0000 sec   684 KBytes  5.60 Mbits/sec  501/0      502 pps
[  3] 1.0000-2.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 2.0000-3.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 3.0000-4.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 4.0000-5.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 5.0000-6.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 6.0000-7.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 7.0000-8.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 8.0000-9.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 9.0000-10.0000 sec   684 KBytes  5.60 Mbits/sec  500/0      500 pps
[  3] 0.0000-10.0042 sec  6.68 MBytes  5.60 Mbits/sec  5005/0      500 pps
[  3] Sent 5005 datagrams
[  3] Server Report:
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3] 0.0000-10.1477 sec  5.67 MBytes  4.69 Mbits/sec  11.400 ms  756/ 5005 (15%)$ iperf -b 550pps -u -e -i 1 -l 1400  -c 192.168.235.63
------------------------------------------------------------
Client connecting to 192.168.235.63, UDP port 5001 with pid 2716 (1 flows)
Write buffer size: 1.37 KByte
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.235.73%ztjjfduqpe port 49192 connected with 192.168.235.63 port 5001
[ ID] Interval            Transfer     Bandwidth      Write/Err  PPS
[  3] 0.0000-1.0000 sec   752 KBytes  6.16 Mbits/sec  551/0      552 pps
[  3] 1.0000-2.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 2.0000-3.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 3.0000-4.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 4.0000-5.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 5.0000-6.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 6.0000-7.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 7.0000-8.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 8.0000-9.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 9.0000-10.0000 sec   752 KBytes  6.16 Mbits/sec  550/0      550 pps
[  3] 0.0000-10.0040 sec  7.35 MBytes  6.16 Mbits/sec  5505/0      550 pps
[  3] Sent 5505 datagrams
[  3] Server Report:
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3] 0.0000-9.9913 sec  5.62 MBytes  4.72 Mbits/sec   3.449 ms 1293/ 5504 (23%)$ iperf -b 600pps -u -e -i 1 -l 1400  -c 192.168.235.63
------------------------------------------------------------
Client connecting to 192.168.235.63, UDP port 5001 with pid 2724 (1 flows)
Write buffer size: 1.37 KByte
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.235.73%ztjjfduqpe port 49983 connected with 192.168.235.63 port 5001
[ ID] Interval            Transfer     Bandwidth      Write/Err  PPS
[  3] 0.0000-1.0000 sec   820 KBytes  6.72 Mbits/sec  601/0      602 pps
[  3] 1.0000-2.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 2.0000-3.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 3.0000-4.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 4.0000-5.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 5.0000-6.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 6.0000-7.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 7.0000-8.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 8.0000-9.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 9.0000-10.0000 sec   820 KBytes  6.72 Mbits/sec  600/0      600 pps
[  3] 0.0000-10.0035 sec  8.01 MBytes  6.72 Mbits/sec  6005/0      600 pps
[  3] Sent 6005 datagrams
[  3] Server Report:
[ ID] Interval       Transfer     Bandwidth        Jitter   Lost/Total Datagrams
[  3] 0.0000-9.9823 sec  5.55 MBytes  4.66 Mbits/sec   3.217 ms 1847/ 6004 (31%)

2.4 实测效果流畅

实测~ 251 ms 时延; 平均延时117/2 = 58.5 ms, 251 - 58.5 = 192.5 ms左右

在这里插入图片描述

3. 总结

综合上面的情况,整体分析:

  1. 上述网络配置情况,视频基本流畅,无雪花,卡顿,性能基本OK,可进行外场测试
  2. 计算机刷屏FPS未能稳定维持在59FPS,待查测试环境
  3. 部分截图发现,延迟甚至有1s之久,可能与刷屏或者最差网络环境有关
  4. 实测时需要关注不稳定的4GLTE网络,以及最差情况是否出现卡顿或者延迟问题

好了,小伙伴们,等我外场测试的好消息! :)

这篇关于Ardupilot Rpanion 4GLTE 网络性能测试 - 国内中转的文章就介绍到这儿,希望我们推荐的文章对编程师们有所帮助!


原文地址:
本文来自互联网用户投稿,该文观点仅代表作者本人,不代表本站立场。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如若转载,请注明出处:http://www.chinasem.cn/article/990195

相关文章

JVisualVM之Java性能监控与调优利器详解

《JVisualVM之Java性能监控与调优利器详解》本文将详细介绍JVisualVM的使用方法,并结合实际案例展示如何利用它进行性能调优,具有很好的参考价值,希望对大家有所帮助,如有错误或未考虑完全... 目录1. JVisualVM简介2. JVisualVM的安装与启动2.1 启动JVisualVM2

Java使用MethodHandle来替代反射,提高性能问题

《Java使用MethodHandle来替代反射,提高性能问题》:本文主要介绍Java使用MethodHandle来替代反射,提高性能问题,具有很好的参考价值,希望对大家有所帮助,如有错误或未考虑... 目录一、认识MethodHandle1、简介2、使用方式3、与反射的区别二、示例1、基本使用2、(重要)

python多线程并发测试过程

《python多线程并发测试过程》:本文主要介绍python多线程并发测试过程,具有很好的参考价值,希望对大家有所帮助,如有错误或未考虑完全的地方,望不吝赐教... 目录一、并发与并行?二、同步与异步的概念?三、线程与进程的区别?需求1:多线程执行不同任务需求2:多线程执行相同任务总结一、并发与并行?1、

Linux网络配置之网桥和虚拟网络的配置指南

《Linux网络配置之网桥和虚拟网络的配置指南》这篇文章主要为大家详细介绍了Linux中配置网桥和虚拟网络的相关方法,文中的示例代码讲解详细,感兴趣的小伙伴可以跟随小编一起学习一下... 一、网桥的配置在linux系统中配置一个新的网桥主要涉及以下几个步骤:1.为yum仓库做准备,安装组件epel-re

python如何下载网络文件到本地指定文件夹

《python如何下载网络文件到本地指定文件夹》这篇文章主要为大家详细介绍了python如何实现下载网络文件到本地指定文件夹,文中的示例代码讲解详细,感兴趣的小伙伴可以跟随小编一起学习一下...  在python中下载文件到本地指定文件夹可以通过以下步骤实现,使用requests库处理HTTP请求,并结合o

PyTorch高级特性与性能优化方式

《PyTorch高级特性与性能优化方式》:本文主要介绍PyTorch高级特性与性能优化方式,具有很好的参考价值,希望对大家有所帮助,如有错误或未考虑完全的地方,望不吝赐教... 目录一、自动化机制1.自动微分机制2.动态计算图二、性能优化1.内存管理2.GPU加速3.多GPU训练三、分布式训练1.分布式数据

Linux高并发场景下的网络参数调优实战指南

《Linux高并发场景下的网络参数调优实战指南》在高并发网络服务场景中,Linux内核的默认网络参数往往无法满足需求,导致性能瓶颈、连接超时甚至服务崩溃,本文基于真实案例分析,从参数解读、问题诊断到优... 目录一、问题背景:当并发连接遇上性能瓶颈1.1 案例环境1.2 初始参数分析二、深度诊断:连接状态与

Gradle在国内配置镜像加速的实现步骤

《Gradle在国内配置镜像加速的实现步骤》在国内使用Gradle构建项目时,最大的痛点就是依赖下载贼慢,甚至卡死,下面教你如何配置国内镜像加速Gradle下载依赖,主要是通过改写repositori... 目录引言一、修改 build.gradle 或 settings.gradle 的 reposito

Java的"伪泛型"变"真泛型"后对性能的影响

《Java的伪泛型变真泛型后对性能的影响》泛型擦除本质上就是擦除与泛型相关的一切信息,例如参数化类型、类型变量等,Javac还将在需要时进行类型检查及强制类型转换,甚至在必要时会合成桥方法,这篇文章主... 目录1、真假泛型2、性能影响泛型存在于Java源代码中,在编译为字节码文件之前都会进行泛型擦除(ty

Qt实现网络数据解析的方法总结

《Qt实现网络数据解析的方法总结》在Qt中解析网络数据通常涉及接收原始字节流,并将其转换为有意义的应用层数据,这篇文章为大家介绍了详细步骤和示例,感兴趣的小伙伴可以了解下... 目录1. 网络数据接收2. 缓冲区管理(处理粘包/拆包)3. 常见数据格式解析3.1 jsON解析3.2 XML解析3.3 自定义