[opensuse] system significantly slow after switch to 64-bit processor and SuSE x86_64
Hello. Recently I bought a new notebook computer with 64-bit AMD CPU and installed SuSE x86_64 on it. The speed is significantly slower then my old notebook computer. In order to tell if this is an OS problem or hardware problem, I installed Windows on both computer and tried again. Both have 512MB memory. I. Windows OS on new notebook is *significantly* faster then Windows on my old notebook; II. SuSE x86_64 on new notebook is *significantly* slower then SuSE x86 on my old notebook. I think probably memory is the key problem, SuSE x86_64 once start up gnome desktop environment, without running any application, can eat up 400MB memory. If I run yast the difference is more obvious: on SuSE x86_64 running yast with software management, free(1) tells 400MB physical memory is used (rest of physical memory are cache), 400MB swap space is used, all together 800MB. I just suspect that probably running SuSE x86_64 might use as twice as memory of that x86_32 version? In that case I probably better choose SuSE x86_32.
What version of SUSE are you using? I don't think the memory is the problem. I always have my memory almost full but that is because Linux manages the memory differently. I think there was a bug in the kernel and the SATA driver but not sure. Please give more information.(notebook model, suse version, etc) David. 张韡武 wrote:
Hello. Recently I bought a new notebook computer with 64-bit AMD CPU and installed SuSE x86_64 on it. The speed is significantly slower then my old notebook computer. In order to tell if this is an OS problem or hardware problem, I installed Windows on both computer and tried again. Both have 512MB memory.
I. Windows OS on new notebook is *significantly* faster then Windows on my old notebook; II. SuSE x86_64 on new notebook is *significantly* slower then SuSE x86 on my old notebook.
I think probably memory is the key problem, SuSE x86_64 once start up gnome desktop environment, without running any application, can eat up 400MB memory. If I run yast the difference is more obvious: on SuSE x86_64 running yast with software management, free(1) tells 400MB physical memory is used (rest of physical memory are cache), 400MB swap space is used, all together 800MB.
I just suspect that probably running SuSE x86_64 might use as twice as memory of that x86_32 version? In that case I probably better choose SuSE x86_32.
-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
在 2006-11-21二的 18:44 -0700，David Canar写道：
What version of SUSE are you using? I don't think the memory is the problem. I always have my memory almost full but that is because Linux manages the memory differently. I think there was a bug in the kernel and the SATA driver but not sure. Please give more information.(notebook model, suse version, etc)
Note book is Compaq Presario V3000. SuSE 10.1 is what I am using. Sorry for forgetting mentioning this in first post. I understand Linux always try to keep memory fully used by cache technology. In my case cache is only used a little (64MB) yuliansu@esmeralda:/srv/www/htdocs> free -m total used free shared buffers cached Mem: 436 425 11 0 15 64 -/+ buffers/cache: 344 91 Swap: 1027 400 626 (at the time I get this 'free' result, the only application I have started is yast) Below result is when yast has quit: yuliansu@esmeralda:/srv/www/htdocs> free -m total used free shared buffers cached Mem: 436 259 176 0 7 39 -/+ buffers/cache: 213 223 Swap: 1027 236 791 this is right after computer booted (gdm configured auto login, so this is when gnome desktop started) esmeralda:/srv/www/htdocs # free -m total used free shared buffers cached Mem: 436 431 5 0 16 159 -/+ buffers/cache: 254 181 Swap: 1027 72 955 By system start, in all 436MB physical memory (why not 512?) already 64% occupied. When I start openoffice probably swap has to be activated. Or should I add more memory? What's the amount of memory recommendation for running SuSE 10.1 x86_64?
David.
张韡武 wrote:
Hello. Recently I bought a new notebook computer with 64-bit AMD CPU and installed SuSE x86_64 on it. The speed is significantly slower then my old notebook computer. In order to tell if this is an OS problem or hardware problem, I installed Windows on both computer and tried again. Both have 512MB memory.
I. Windows OS on new notebook is *significantly* faster then Windows on my old notebook; II. SuSE x86_64 on new notebook is *significantly* slower then SuSE x86 on my old notebook.
I think probably memory is the key problem, SuSE x86_64 once start up gnome desktop environment, without running any application, can eat up 400MB memory. If I run yast the difference is more obvious: on SuSE x86_64 running yast with software management, free(1) tells 400MB physical memory is used (rest of physical memory are cache), 400MB swap space is used, all together 800MB.
I just suspect that probably running SuSE x86_64 might use as twice as memory of that x86_32 version? In that case I probably better choose SuSE x86_32.
-- 锐业软服（国内业务） http://www.realss.cn Real SoftService http://www.realss.com 销售咨询(Sales Department): 0086 592 20 99987 (Chinese, German, English) 国际业务(International Sales): 0086 10 8460 6011 (German and English) 联系：厦门大学科技园，嘉庚二号楼6楼 邮政：厦门大学2312号信箱（邮编361005）
On Tuesday 21 November 2006 17:18, 张韡武 wrote:
Or should I add more memory? What's the amount of memory recommendation for running SuSE 10.1 x86_64?
The general answer to this is always YES! ;-) Always add more. 1 gig is nice. 2 is better. But your tests are not complete. You now have to install SUSE on your old laptop to make sure it wasn't installed wrong. Then we will be done with these comparisons. ;-) -- _____________________________________ John Andersen
On Tuesday November 21 2006 8:18 pm, 张韡武 wrote:
By system start, in all 436MB physical memory (why not 512?)
Does this laptop use shared system memory for your video memory? Say around 64M shared video memory is set in the BIOS? Stan -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (4)
-
David Canar -
John Andersen -
Stan Glasoe -
张韡武