RE: gzip vs. compress
- From: M Rafiq <rafiq9857@xxxxxxxxxxx>
- To: <lfcerri@xxxxxxxxx>, <alberto.dellera@xxxxxxxxx>
- Date: Tue, 22 Jan 2008 20:33:11 -0500
Very nice comparison.
Personally I am using gzip (on any platform) since 1998 without any issues. cpu
usage was pointed out by my collegue as it touches 100% sometime.
Regards
Rafiq> Date: Tue, 22 Jan 2008 20:18:56 -0300> From: lfcerri@xxxxxxxxx> To:
alberto.dellera@xxxxxxxxx> Subject: Re: gzip vs. compress> CC:
rafiq9857@xxxxxxxxxxx; joe_dba@xxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx> > Adding my
0.02, you'd can do some tests on your box and, as others> have said, make your
mind based on what is cheaper for you: disk space> or CPU.> > > Original
random.out is about 7MB:> > > > $ time gzip random.out> > real 0m7.231s> user
0m6.650s> sys 0m0.540s> > > $ ls -l random.out.gz> -rw-r--r-- 1 owner users
39641 Jan 22 11:39 random.out.gz> > > > $ time compress random.out> > real
0m26.246s> user 0m22.470s> sys 0m1.220s> > > > $ ls -l random.out.Z> -rw-r--r--
1 owner users 386673 Jan 22 11:39 random.out.Z> > > HTH,> Cerri> > > 2008/1/22,
Alberto Dell'Era <alberto.dellera@xxxxxxxxx>:> > On Jan 22, 2008 9:04 PM, M
Rafiq <rafiq9857@xxxxxxxxxxx> wrote:> > > Only observation is high CPU usage
for gzip than compress though.> >> > Also worth mentioning:> >> > > man gzip> >
(snip)> > -# --fast --best> > Regulate the speed of compression using the
specified> > digit #, where -1 or --fast indicates the fastest compression> >
method (less compression) and -9 or --best indicates the> > slowest compression
method (best compression). The default com-> > pression level is -6 (that is,
biased towards high compression> > at expense of speed).> >> > probably (not
tested myself) you might experience less CPU utilization> > by setting a low
compression rate, if CPU is at a premium.> >> > --> > Alberto Dell'Era> > "the
more you know, the faster you go"> > --> >
//www.freelists.org/webpage/oracle-l> >> >> >> -->
//www.freelists.org/webpage/oracle-l> >
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