Date: Mon, 06 May 1996 17:32:52 +0000 From: Matt Thomas <matt@lkg.dec.com> To: hackers@freebsd.org Subject: Pentium Pro impressions Message-ID: <199605061732.RAA04851@whydos.lkg.dec.com>
next in thread | raw e-mail | index | archive | help
My faithful 486/66 that I use my as workstation is now a
Digital Celebris XL 6150 (aka PentiumPro 150). Note that
the PPros that Digital sells do not have 4MB/s PCI->memory
limitation. I ran 3 dd (one for each of my disks plus
one ttcp over FDDI) and got just under a 12MB/s aggregate
transfer rate.
FreeBSD 2.1.0-RELEASE #0: Fri May 3 15:57:04 1996
thomas@whydos.lkg.dec.com:/usr/src/sys/compile/DECFDDI
CPU: 150-MHz unknown (Pentium-class CPU)
Origin = "GenuineIntel" Id = 0x611 Stepping=1
Features=0xf9ff<FPU,VME,PSE,MCE,CX8,APIC>
Running ram-speed (on various platforms) gives:
Celebris XL 6150 128MB interleaved FreeBSD 2.1.0-RELEASE
49005fb0 0.159 uS/op 6.30e+06 op/S 24.047 Mb/S
8938c0df 0.415 uS/op 2.41e+06 op/S 9.194 Mb/S
ASUS TP4P55XE P90, 16MB, 512PB cache FreeBSD 2.1.0-RELEASE
49005fb0 0.242 uS/op 4.13e+06 op/S 15.763 Mb/S
8938c0df 0.092 uS/op 1.08e+07 op/S 41.255 Mb/S
DECpc XL 466/d2 32MB, 256KB WT cache FreeBSD 2.1.0-RELEASE
49005fb0 0.307 uS/op 3.26e+06 op/S 12.430 Mb/S
8938c0df 0.124 uS/op 8.07e+06 op/S 30.790 Mb/S
Intel OEM 486/50, EISA, 16MB, ??? cache FreeBSD 2.2-960501-SNAP
49005fb0 0.442 uS/op 2.26e+06 op/S 8.634 Mb/S
8938c0df 0.521 uS/op 1.92e+06 op/S 7.318 Mb/S
Using a benchmark (and one that I prefer since I compile
lots of kernels), is to see how long each system takes to
compile a certain config file (in the same order as above):
136.4u 25.8s 3:05.32 87.5% 955+1114k 1006+431io 26pf+0w
275.5u 26.5s 5:21.17 94.0% 1039+1204k 1270+459io 119pf+0w
577.7u 54.9s 10:51.16 97.1% 1019+1192k 997+418io 102pf+0w
655.2u 76.5s 12:39.86 96.3% 913+1120k 1217+560io 126pf+0w
Another interesting test is to a simply ttcp to localhost
and see what the effective transfer rate is. (this tests
both CPU and memory bandwidth; same order as above):
ttcp-r: 16777216 bytes in 0.61 real seconds = 209.52 Mbit/sec +++
ttcp-r: 16777216 bytes in 1.51 real seconds = 84.53 Mbit/sec +++
ttcp-r: 16777216 bytes in 3.09 real seconds = 41.37 Mbit/sec +++
ttcp-r: 16777216 bytes in 2.76 real seconds = 46.30 Mbit/sec +++
My impression so far is that the P6-150 is much faster than
the P90 for compute intensive tasks (like gcc). It blows
away the old 486/66dx2. exmh is visibly faster as are most
X11 programs.
I'm one happy camper...
--
Matt Thomas Internet: matt@3am-software.com
3am Software Foundry WWW URL: http://www.3am-software.com/bio/matt.html
Westford, MA Disclaimer: I disavow all knowledge of this message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199605061732.RAA04851>