tblader wrote:
John Summerfield wrote:
tblader wrote:
Hello all.
I have a centos 4.4 box (2.6.9-42.0.10.ELsmp) with 7gig of ram that
doesn't seem to be using swap (also 7gig now). I say "seem" because
I've noticed ram utilization run around 95% (with oracle and friends
running) and then firing up a couple apps to use that last 5% will
stop the machine dead in it's tracks.
What architecture is this beast?
Hope this is is of use.
[2]$ uname -virmop
2.6.9-42.0.10.ELsmp #1 SMP Tue Feb 27 09:40:21 EST 2007 x86_64 x86_64
x86_64 GNU/Linux
[2]$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 67
model name : AMD Athlon(tm) 64 FX-62 Dual Core Processor
stepping : 2
cpu MHz : 2800.038
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext lm
3dnowext 3dnow pni cx16
bogomips : 5603.52
TLB size : 1088 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp [4] [5]
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 67
model name : AMD Athlon(tm) 64 FX-62 Dual Core Processor
stepping : 2
cpu MHz : 2800.038
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext lm
3dnowext 3dnow pni cx16
bogomips : 5599.20
TLB size : 1088 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp [4] [5]
[2]$ cat /proc/meminfo
MemTotal: 7128956 kB
MemFree: 2132556 kB
Buffers: 556832 kB
Cached: 2821408 kB
A supplementary question, can anyone explain what "buffers" and "cached"
are? I have a performance problem with postgresql (discussion is on the
postgresql list), and I see those figures displayed by commands such as
free, top and procinfo but the man pages don't define them.
--
Cheers
John
-- spambait
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