Re: [SQU] 2.4, diskd, FreeBSD seems a bit slow

FreeBSD 4.2 box, 3x18gig drives for cache, running "close to" latest
version from CVS and 1gig of RAM on a Dual-Xeon 700, using softupdates ...
damn, lookign at these numbers, the version in CVS has gone downhill?
*raised eyebrow* All median of ~273ms?

60min:

client_http.all_median_svc_time = 0.273318 seconds
client_http.miss_median_svc_time = 0.764075 seconds
client_http.nm_median_svc_time = 0.013086 seconds
client_http.nh_median_svc_time = 0.469653 seconds
client_http.hit_median_svc_time = 0.023168 seconds

5min:

client_http.all_median_svc_time = 0.245243 seconds
client_http.miss_median_svc_time = 0.723868 seconds
client_http.nm_median_svc_time = 0.013086 seconds
client_http.nh_median_svc_time = 0.399283 seconds
client_http.hit_median_svc_time = 0.024508 seconds

On Tue, 6 Feb 2001, Jon Mansey wrote:

>
> So you're getting around 32ms HIT times. Heres one of my 2.3 boxes, I
> see around 23ms here using UFS.
>
> Median Service Times (seconds) 5 min 60 min:
> HTTP Requests (All): 0.05951 0.09219
> Cache Misses: 0.20843 0.20843
> Cache Hits: 0.02317 0.02317
> Near Hits: 0.12783 0.16775
> Not-Modified Replies: 0.01235 0.01648
> DNS Lookups: 0.01331 0.01046
> ICP Queries: 0.00000 0.00000
>
> Maybe the the median access time is a little longer but it supports
> higher load?
>
> jm
>
>
> >This is from one of my Diskd boxes. Its P3 running FreeBSD 4.0 with 768
> >MB of RAM and 6 x 4096 8 256 cache dirs. Your boxes are running FreeBSD
> >right?
> >
> >
> >Awais
> >
> >Median Service Times (seconds) 5 min 60 min:
> > HTTP Requests (All): 0.80651 1.00114
> > Cache Misses: 1.46131 1.54242
> > Cache Hits: 0.03241 0.03241
> > Near Hits: 1.54242 1.54242
> > Not-Modified Replies: 0.01035 0.01309
> > DNS Lookups: 0.02336 0.03696
> > ICP Queries: 0.00000 0.00000
> >
> >Jon Mansey wrote:
> >
> >> Median Service Times (seconds) 5 min 60 min:
> >> HTTP Requests (All): 0.18699 0.18699
> >> Cache Misses: 0.19742 0.20843
> >> Cache Hits: 0.05951 0.05046
> >> Near Hits: 0.15888 0.16775
> >> Not-Modified Replies: 0.04519 0.04047
> >> DNS Lookups: 0.02231 0.02336
> >> ICP Queries: 0.00000 0.00000
> >>
> >> I thought diskd was supposed to improve disk access times?
> >>
> >> I think 50-60ms for cache hits is quite a bit slower than the 2.3
> >> boxes I have running, they average 20ms.
> >>
> >> What times are others seeing?
> >>
> >> jm
> >>
> >> --
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> >
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> --
>
> jon@interpacket.net Chief Science Officer
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Marc G. Fournier marc.fournier@acadiau.ca
Senior Systems Administrator Acadia University

  "These are my opinions, which are not necessarily shared by my employer"

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