rafan 的筆記本

• Dual P4 Xeon 2.8G + HT, 2G memory
  • Linux 2.4.26-lids1.1.2p4 #1 SMP 三 6月 16 14:50:16 CST 2004 i686
    • gcc version 3.3.3 (Debian 20040401)
    • gcc -O2 -Wall -malign-loops=2 -malign-jumps=2 -malign-functions=2 -fomit-frame-pointer -s -lm

 Ubench CPU:   254214
 Ubench MEM:   259064
 --------------------
 Ubench AVG:   256639

• • FreeBSD 4.10-RELEASE-p2 FreeBSD 4.10-RELEASE-p2 #7: i386
    • gcc version 3.3.5 20040901 (prerelease) [FreeBSD]
    • gcc33 -O2 -Wall -malign-loops=2 -malign-jumps=2 -malign-functions=2 -fomit-frame-pointer -s -lm

 Ubench CPU:   178273
 Ubench MEM:   143940
 --------------------
 Ubench AVG:   161106

• • • cc -O3 (linux binary)

 Ubench CPU:   214791
 Ubench MEM:   154917
 --------------------
 Ubench AVG:   184854

• Dual P4 Xeon 3.2G + HT, 1G memory (EM64T/i386)
  • FreeBSD 5.3-STABLE FreeBSD 5.3-STABLE #1: Dec 23 2004 i386, SCHED_4BSD
    • gcc version 3.4.2 [FreeBSD] 20040728
    • cc -O2 -Wall -malign-loops=2 -malign-jumps=2 -malign-functions=2 -fomit-frame-pointer -s -lm

 Ubench CPU:   179095
 Ubench MEM:   150890
 --------------------
 Ubench AVG:   164992

• • • cc -O3

 Ubench CPU:   180541
 Ubench MEM:   124360
 --------------------
 Ubench AVG:   152450

• • • cc -O3 -march=pentium4

 Ubench CPU:   188784
 Ubench MEM:   156004
 --------------------
 Ubench AVG:   172394

• Dual P4 Xeon 3.2G + HT, 1G memory (EM64T/amd64)
  • FreeBSD 5.3-RELEASE FreeBSD 5.3-RELEASE #0: amd64, SCHED_4BSD
    • cc -O3

 Ubench CPU:   252429
 Ubench MEM:   169866
 --------------------
 Ubench AVG:   211147

• • • cc -O3 -march=k8

 Ubench CPU:   252429
 Ubench MEM:   169373
 --------------------
 Ubench AVG:   210901

• • FreeBSD 5.3-STABLE FreeBSD 5.3-STABLE #1: Dec 25 2004, SCHED_4BSD w/o COMPAT_IA32, COMPAT_FREEBSD4
    • cc -O3 -march=k8

 Ubench CPU:   259819
 Ubench MEM:   176178
 --------------------
 Ubench AVG:   217998