# 编辑配置文件
$ sudo vim /etc/sysctl.d/99-web-server.conf

# 添加以下内容
# Web服务器优化
# 网络参数
net.core.somaxconn = 65535
net.ipv4.tcp_max_syn_backlog = 65535
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.tcp_keepalive_probes = 5
net.ipv4.tcp_keepalive_intvl = 15
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_fastopen = 3

# 文件系统参数
fs.file-max = 655360

# 保存退出
:wq

# 加载配置
$ sudo sysctl -p /etc/sysctl.d/99-web-server.conf

# 验证参数
$ sysctl net.core.somaxconn net.ipv4.tcp_max_syn_backlog
net.core.somaxconn = 65535
net.ipv4.tcp_max_syn_backlog = 65535

# 测试性能
$ ab -n 10000 -c 1000 http://localhost/

This is ApacheBench, Version 2.3 <$Revision: 1843412 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking localhost (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests

Server Software: nginx/1.24.0
Server Hostname: localhost
Server Port: 80

Document Path: /
Document Length: 612 bytes

Concurrency Level: 1000
Time taken for tests: 1.876 seconds
Complete requests: 10000
Failed requests: 0
Total transferred: 8380000 bytes
HTML transferred: 6120000 bytes
Requests per second: 5330.24 [#/sec] (mean)
Time per request: 187.600 [ms] (mean)
Time per request: 0.188 [ms] (mean, across all concurrent requests)
Transfer rate: 4356.89 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 8 4.1 7 98
Processing: 4 20 6.8 18 123
Waiting: 1 14 4.9 13 95
Total: 4 28 8.2 25 187

Percentage of the requests served within a certain time (ms)
50% 25
66% 28
75% 30
80% 32
90% 36
95% 40
98% 48
99% 55
100% 187 (longest request)

# 编辑配置文件
$ sudo vim /etc/sysctl.d/99-database-server.conf

# 添加以下内容
# 数据库服务器优化
# 内存参数
vm.swappiness = 10
vm.overcommit_memory = 1
vm.overcommit_ratio = 90
vm.dirty_background_ratio = 5
vm.dirty_ratio = 10

# 内核参数
kernel.sem = 250 32000 100 128
kernel.shmmax = 4294967296
kernel.shmall = 1048576
kernel.shmmni = 4096

# 文件系统参数
fs.file-max = 655360

# 网络参数
net.core.somaxconn = 65535
net.ipv4.tcp_max_syn_backlog = 65535

# 保存退出
:wq

# 加载配置
$ sudo sysctl -p /etc/sysctl.d/99-database-server.conf

# 验证参数
$ sysctl vm.swappiness kernel.shmmax
vm.swappiness = 10
kernel.shmmax = 4294967296

# 测试MySQL性能
$ mysqlslap –user=root –password=password –host=localhost –concurrency=100 –iterations=10 –query=”SELECT * FROM fgedu_test_table”

Benchmark
Average number of seconds to run all queries: 0.123 seconds
Minimum number of seconds to run all queries: 0.101 seconds
Maximum number of seconds to run all queries: 0.156 seconds
Number of clients running queries: 100
Average number of queries per client: 1

# 编辑配置文件
$ sudo vim /etc/sysctl.d/99-hpc.conf

# 添加以下内容
# 高性能计算优化
# 内存参数
vm.swappiness = 0
vm.overcommit_memory = 2
vm.overcommit_ratio = 100

# 内核参数
kernel.sched_autogroup_enabled = 0
kernel.sched_migration_cost_ns = 5000000

# 网络参数
net.core.somaxconn = 65535
net.ipv4.tcp_max_syn_backlog = 65535
net.ipv4.tcp_fin_timeout = 30

# 文件系统参数
fs.file-max = 655360

# 保存退出
:wq

# 加载配置
$ sudo sysctl -p /etc/sysctl.d/99-hpc.conf

# 验证参数
$ sysctl vm.swappiness kernel.sched_autogroup_enabled
vm.swappiness = 0
kernel.sched_autogroup_enabled = 0

# 测试计算性能
$ stress-ng –cpu 8 –cpu-method all –metrics-brief –timeout 60s

stress-ng: info: [12345] dispatching hogs: 8 cpu
stress-ng: info: [12345] successful run completed in 60.01s
stress-ng: info: [12345] stress-ng: metrics: {
stress-ng: info: [12345] “cpu”: {
stress-ng: info: [12345] “bogo_ops_per_sec”: 1234567.89,
stress-ng: info: [12345] “bogo_ops”: 74074073.4,
stress-ng: info: [12345] “user_time”: 479.87,
stress-ng: info: [12345] “system_time”: 0.13,
stress-ng: info: [12345] “wall_time”: 60.01
stress-ng: info: [12345] }
stress-ng: info: [12345] }