Date: Wed, 30 Oct 1996 04:30:02 -0800 (PST) From: se@zpr.uni-koeln.de (Stefan Esser) To: freebsd-bugs Subject: Re: bin/1927: User CPU time getting accounting as system time Message-ID: <199610301230.EAA11869@freefall.freebsd.org>
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The following reply was made to PR bin/1927; it has been noted by GNATS.
From: se@zpr.uni-koeln.de (Stefan Esser)
To: markd@Grizzly.COM
Cc: FreeBSD-gnats-submit@freebsd.org
Subject: Re: bin/1927: User CPU time getting accounting as system time
Date: Wed, 30 Oct 1996 13:19:26 +0100
Mark Diekhans writes:
>
> P5/166, ASUS MB, 32MB ram, Adaptec SCSI
>
> >Description:
>
> I ran an CPU intensive job, timing it with /usr/bin/time and the result was
> 2097.84 real 0.00 user 2013.06 sys
>
> which is very wrong, since its almost all user time. I rebooted and ran
> again and got:
>
> 2405.01 real 2025.56 user 2.25 sys
>
> which is as expected.
I've seen this multiple times, too. The following is the output
of "time make world" over the last two months. As you can see,
in 3 out of 51 runs most of the user time got attributed to the
system time. (ASUS SP3G, AMD 5x86/133, NCR SCSI, Quantum Atlas 2GB,
16MB RAM (32MB in the last few samples)))
15819.25 real 11900.86 user 2572.80 sys
16229.11 real 12131.65 user 2651.07 sys
15555.73 real 11742.57 user 2523.07 sys
15139.16 real 11507.38 user 2382.72 sys
15655.92 real 11507.00 user 2116.89 sys
16311.38 real 12133.03 user 2480.95 sys
15953.37 real 12124.38 user 2515.52 sys
16081.60 real 12067.89 user 2495.41 sys
16144.54 real 12126.24 user 2509.68 sys
15879.62 real 12055.97 user 2498.81 sys
15989.01 real 12037.57 user 2499.67 sys
15885.18 real 12047.95 user 2505.62 sys
15723.61 real 11966.01 user 2475.55 sys
15676.32 real 11915.05 user 2472.28 sys
15759.47 real 12040.03 user 2499.20 sys
15799.01 real 12056.58 user 2509.78 sys
15878.07 real 12069.65 user 2487.59 sys
15975.21 real 12067.11 user 2514.69 sys
15757.66 real 12049.61 user 2495.99 sys
17138.65 real 13537.43 user 2668.62 sys
17364.41 real 13773.14 user 2669.46 sys
17038.59 real 13498.43 user 2584.88 sys
15815.96 real 12183.34 user 2596.90 sys
16077.20 real 12205.27 user 2623.22 sys
15904.60 real 12203.17 user 2586.70 sys
16322.77 real 12343.40 user 2688.58 sys
16230.53 real 12399.03 user 2678.14 sys
16286.23 real 12228.41 user 2614.34 sys
16291.47 real 12390.42 user 2681.78 sys
15068.48 real 11599.29 user 2489.23 sys
16274.49 real 12475.23 user 2699.11 sys
16223.23 real 12485.89 user 2702.36 sys
16140.83 real 12365.74 user 2700.29 sys
16642.98 real 12825.41 user 2588.91 sys
16000.19 real 4454.90 user 10203.62 sys
16626.18 real 12689.98 user 2714.29 sys
17039.48 real 12971.43 user 2682.71 sys
16888.59 real 12957.94 user 2716.47 sys
16899.66 real 12916.22 user 2730.00 sys
17131.40 real 13208.64 user 2742.89 sys
17664.34 real 13659.86 user 2765.63 sys
17714.62 real 13684.26 user 2768.80 sys
17801.82 real 13794.24 user 2745.24 sys
18067.02 real 13817.37 user 2742.80 sys
17937.92 real 5450.79 user 11241.73 sys
18499.35 real 5558.41 user 11525.37 sys
18556.16 real 14230.53 user 2881.41 sys
18533.28 real 14153.93 user 2845.96 sys
18225.30 real 13641.48 user 3169.55 sys
18997.92 real 14213.83 user 3346.92 sys
18852.84 real 14174.29 user 3298.65 sys
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