请问如果编译了内核之后，系统的速度最大有多少提升？

fishfeather · 发表于 2003-6-15 21:20:03

我的RH9始终感觉比WIN慢很多
不知道通过编译内核之后能不能解决这个问题？

Dragonfly · 发表于 2003-6-15 22:47:26

it depends on what kind of machine u use? what is u current configuration, and what is u definition on "slow".

no fixed answer.

fishfeather · 发表于 2003-6-15 22:50:06

我的意思是一般来说最大会有多少提升？

Dragonfly · 发表于 2003-6-15 23:34:21

it still depends on what u want to do. may be 0, may be 100% or higher or -10%.
a low latency patch can improve u desktop responsiveness, but low u web server throughput. so u answer a too big question.

for u rh9, how many mem u have? how many service u start? use the meminfo, top, ... so many commands to find u bottleneck.

cnhnln · 发表于 2003-6-15 23:56:55

我感觉不到

Dragonfly · 发表于 2003-6-16 00:00:00

i can feel, by using benchmark to measure.

performance optimization steps
1) find goals
2) find bottleneck
3) find solution
4) measure improvement
5) go to 1)

fishfeather · 发表于 2003-6-16 12:34:49

谢谢
必须要实际操作一下才行了哦
我的机器配置不高
M-P3 800
128M-4M共享显存
20G 4400转硬盘
可能是硬盘速度太慢了
用HDPARM优化了也只能到20M每秒

beyondsakai · 发表于 2003-6-16 16:21:22

我只能感觉到启动速度稍快了一点。

Dragonfly · 发表于 2003-6-16 22:47:22

u 4400rpm? i think it is 4500rpm. or 5400rpm. for this kind of ide disk, 20mb/s is normal. u mem is small, try to use icewm instead of kde. and recompile kernel with march=pentium3.

cnhnln · 发表于 2003-6-16 23:31:27

Dragonfly, 斑竹您说是把需要的东西编译进内核好还是编译成模块好呢？
我以前是尽量编译成模块，现在是尽量编译进内核，但是却没发现系统快多少，比如网卡、ext3等

Dragonfly · 发表于 2003-6-17 00:36:14

yes, once the module is loaded into kernel, there is no speed difference. so if a module u use it everyday, then compile into kernel, if no, then leave it as module.

whz81 · 发表于 2003-6-21 17:59:13

[quote:324bc3ff62="Dragonfly"]u 4400rpm? i think it is 4500rpm. or 5400rpm. for this kind of ide disk, 20mb/s is normal. u mem is small, try to use icewm instead of kde. and recompile kernel with march=pentium3.[/quote]

有4400rpm,笔记本的

Dragonfly · 发表于 2003-6-22 08:10:40

o, so i am wrong again.

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请问如果编译了内核之后，系统的速度最大有多少提升？

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