[linux-l] Java Thread vs. c fork

[Tobias Schlottke]

On Sun, 19 Oct 2003, Thomas Knop wrote:
>
> Ergebnisse
> ==========
> System: Pentium MMX 233 MHz, 256 MB RAM
>
> diet gcc -Os -o tfork tfork.c
> time ./tfork
>
> real	0m1.191s
> user	0m0.000s
> sys	0m0.940s
>
> gcc -Os -o tfork tfork.c
> time ./tfork
>
> real	0m1.588s
> user	0m0.000s
> sys	0m1.000s
>

geek:threads> uname -a ;/usr/platform/sun4u/sbin/prtdiag
SunOS geek 5.9 Generic_112233-06 sun4u sparc SUNW,Sun-Fire-480R
System Configuration:  Sun Microsystems  sun4u Sun Fire 480R
System clock frequency: 150 MHz
Memory size: 4096 Megabytes

========================= CPUs ===============================================

          Run   E$    CPU     CPU
Brd  CPU  MHz   MB   Impl.    Mask
---  ---  ---  ----  -------  ----
 A    0   900  8.0   US-III+  2.3
 A    2   900  8.0   US-III+  2.3

geek:threads>
time ./tfork 0.01u 0.44s 0:00.55 81.8%
geek:threads> time ./tfork
0.01u 0.49s 0:00.56 89.2%
geek:threads> time ./tfork
0.00u 0.48s 0:00.63 76.1%

Toby