open() speed (was Blocking for disk I/O)

Scott Schwartz schwartz at shire.cs.psu.edu
Mon May 22 09:59:24 AEST 1989


1000 open's and closes:

Kenneth Almquist writes:
	17.3 real    0.0 user    3.2 sys
 This is on an otherwise idle system running Ultrix 3.0, a 4.2 BSD


Chris Torek writes:  
	0.1u 0.9s 0:01 84% 1+3k 0+0io 2pf+0w
 4.3BSD > Ultrix ... ?

Matt Thomas writes:
    VAX 6220 (Ultrix V3.0, RA82):  0.0u 1.1s 0:00 120% 1+5k 0+1io 0pf+0w
    DS3100 (Ultrix V3.1, RZ23):    0.0u 0.2s 0:00 100% 10+21k 0+0io 0pf+0w
    uVAX II (Ultrix V3.0, RA81):   0.0u 2.8s 0:02 100% 1+5k 0+0io 0pf+0w
    VAX 8700 (Ultrix V3.1, RA81):  0.0u 0.5s 0:00 83% 1+5k 0+0io 0pf+0w
    VAX 8700 (Ultrix V3.1, RA81+NFS): 0.0u 1.8s 0:07 26% 2+6k 0+0io 0pf+0w

I write:
    Sun3/60  (SunOS4.0, NFS):   0.0u 2.4s 0:07 34% 0+80k 0+0io 0pf+0w
    Sun4/260 (SunOS4.0, Eagle): 0.0u 0.2s 0:00 110% 0+152k 0+0io 0pf+0w
    Sun4/280 (SunOS4.0, NFS):   0.0u 1.8s 0:04 40% 0+160k 0+0io 0pf+0w
-- 
Scott Schwartz		<schwartz at shire.cs.psu.edu>



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