LinuxQuestions.org
Latest LQ Deal: Latest LQ Deals
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 07-31-2005, 10:01 PM   #1
chronic397
LQ Newbie
 
Registered: Jul 2005
Posts: 2

Rep: Reputation: 0
why is cpuinfo showing 16KB cache size on HT 3ghz xeon?


I just finished installing slackware 10.1. I rebuilt the kernel to support SMP with kernel version 2.4.29. The system has 2 x 3ghz xeon processors with 2MB cache but when I do a cpuinfo on it, it only shows 16KB cache. I have HT enabled so it shows 4 processors. Anyone know why or how to get it to show the right information?

Here is a copy of cpuinfo:
cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 3
cpu MHz : 2992.777
cache size : 16 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm pni monitor ds_cpl cid
bogomips : 5976.88

processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 3
cpu MHz : 2992.777
cache size : 16 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm pni monitor ds_cpl cid
bogomips : 5976.88

processor : 2
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 3
cpu MHz : 2992.777
cache size : 16 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm pni monitor ds_cpl cid
bogomips : 5976.88

processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 3
cpu MHz : 2992.777
cache size : 16 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm pni monitor ds_cpl cid
bogomips : 5976.88

Thanks
 
Old 07-31-2005, 10:05 PM   #2
chronic397
LQ Newbie
 
Registered: Jul 2005
Posts: 2

Original Poster
Rep: Reputation: 0
I used "Pentium 4" as the processor family to rebuild the kernel if this matters.
 
Old 08-01-2005, 12:57 AM   #3
Electro
LQ Guru
 
Registered: Jan 2002
Posts: 6,042

Rep: Reputation: Disabled
Probably it is using the L1 cache. Try disabling HT (Hyperthreading) to see if it gives 2 MB (2048 KB) of cache. Also have check in /var/log/messages. For a server or just about any system, kernel version 2.6.x will perform better.
 
  


Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Cache memory size too high? Boomba Linux - General 2 10-15-2005 01:32 PM
HD not showing up as correct size, please help!! chriserickson Linux - Hardware 6 09-23-2005 01:04 PM
FC4 HDD showing wrong size h00ty Fedora - Installation 5 08-20-2005 11:10 AM
CPU cache size /proc/cpuinfo is wrong? omg-ffs Linux - Hardware 9 10-13-2004 11:46 AM
How to find size of Cache memory i.e. L1 and L2 elanvital Linux - General 0 05-29-2004 01:40 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 06:14 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration