Ok the subject line is misleading.. but I don't know how else to put it.
I have a machine on which SOME programs are slow. VERY SLOW. Other
programs run just fine. I cannot seem to find the source of the problem.
Machine 1 (the ok machine) is running 6.2-RELEASE-pLATEST. It is a
CPU: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz (1862.11-MHz K8-class
CPU)
Origin = "GenuineIntel" Id = 0x6f6 Stepping = 6
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,<b9>,CX16,<b14>,<b15>>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
Cores per package: 2
real memory = 2145427456 (2046 MB)
avail memory = 2060214272 (1964 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
Machine 2 (the slow machine) is running 6.2-RELEASE-pLATEST. It is a
CPU: Intel(R) Core(TM)2 CPU 6320 @ 1.86GHz (1876.00-MHz K8-class
CPU)
Origin = "GenuineIntel" Id = 0x6f6 Stepping = 6
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,<b9>,CX16,XTPR,<b15>>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
Cores per package: 2
real memory = 4764729344 (4544 MB)
avail memory = 4063408128 (3875 MB)
ACPI APIC Table: <INTEL DP965LT >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
Both are compiled with the exact same CFLAGS/COPTFLAGS (though it doesn't
matter WHAT I compile it with, its still SLOW on many operations, thou
fine on others).
For example:
Machine 1:
dd bs=22 if=X11-lib32.tar.bz2 | cat >/dev/null
2571071+1 records in
2571071+1 records out
56563575 bytes transferred in 23.048543 secs (2454106 bytes/sec)
Machine 2:
dd bs=22 if=X11-lib32.tar.bz2 | cat >/dev/null
2571071+1 records in
2571071+1 records out
56563575 bytes transferred in 24.052331 secs (2351688 bytes/sec)
Machine 1:
openssl speed
aes-128 cbc 91791.47k 94887.05k 96138.47k 96574.02k
96623.36k
aes-192 cbc 80654.04k 84248.16k 85304.90k 85590.38k
85589.09k
aes-256 cbc 72706.24k 75476.05k 75957.00k 76046.60k
76020.44k
Machine 2:
openssl speed
aes-128 cbc 92457.48k 95876.89k 96900.91k 97227.52k
97223.53k
aes-192 cbc 80875.87k 84916.79k 85773.97k 85996.90k
85978.43k
aes-256 cbc 72943.78k 75833.00k 76466.32k 76631.74k
76642.40k
Machine 1:
time sed -f
/usr/src/gnu/usr.bin/groff/tmac/../../../../contrib/groff/tmac/strip.sed
/usr/src/gnu/usr.bin/groff/tmac/../../../../contrib/groff/tmac/doc-common
/dev/null
real 0m0.059s
user 0m0.013s
sys 0m0.000s
Machine 2:
time sed -f
/usr/src/gnu/usr.bin/groff/tmac/../../../../contrib/groff/tmac/strip.sed
/usr/src/gnu/usr.bin/groff/tmac/../../../../contrib/groff/tmac/doc-common
/dev/null
real 0m4.506s
user 0m4.167s
sys 0m0.000s
Yes... you read that right... almost 400 _TIMES_ slower. WTF..
Where should I be looking?
--
David E. Cross
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