How to check if my Linux Box installation installation has SSE instructions capabilities?

Question

I am trying to install libjpeg-turbo and I want to make sure that it fully utilizes the capabilities of my box.

abaumg · Accepted Answer · 2011-05-07 18:58:46Z

6

Use cat /proc/cpuinfo | grep sse to see if your CPU has SSE abilites.

edited May 7, 2011 at 18:58

answered May 7, 2011 at 18:44

abaumg

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4 Comments

user855 Over a year ago

22:flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow nonstop_tsc pni cx16 lahf_lm cmp_legacy svm extapic cr8legacy 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps 46:flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow nonstop_tsc pni cx16 lahf_lm cmp_legacy svm extapic cr8legacy 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps

abaumg Over a year ago

The sse and sse2 extensions are available.

adobriyan Over a year ago

Availability doesn't mean package uses SSE.

abaumg Over a year ago

You're right, I clarified my answer. Still, the original question was "how to check if the extension is available".

nobody · Accepted Answer · 2011-05-07 18:44:20Z

0

To show all the CPU flags:

cat /proc/cpuinfo

answered May 7, 2011 at 18:44

nobody

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