[Gluster-devel] webservers vs. glusterfs vs. namespace

[Anand Avati]

Sascha,
 the reason why 1.3.0pre4 might be faster would not be because of the
missing namespace, but most likely because of missing self-heal. can you try
with 'option self-heal off' in the unify section?

are the test results same for multiple runs too?

avati

2008/1/18, Sascha Ottolski <ottolski at web.de>:
>
> Hi Folks,
>
> I'm wondering if anyone might have some general advices if I miss
> something important in my test setup. I'm trying to figure out how to
> tweak the configs to achieve the best performance, but get result that
> feel strange to me. I will post some numbers at a later point, but up
> to now what I discovered is:
>
> - glusterfs without a namespace (1.3.0pre4) seems to be significant
> faster than with namespace (tla patch-628)
>
> that seems to logical, at least I would expect some overhead for the
> namespace.
>
> what i absolutely not understand is, how different the webservers
> perform. i tested with
>
>     siege -f /tmp/siege-urls.txt.new -c100 -i -r50 -b
>
> with up to 3 sessions in parellel, each firing it's requests to a
> seperate webserver (on seperate machines, of course).
>
> up to now my ranking by means of requests/per second is something like
>
> 630 | apache
> 430 | apache2 (worker)
> 350 | nginx
> 250 | lighttpd
>
> (with 1.3.0pre4 and no namespace, the best I've seen was apache2 with
> about 900, apache still 750). I must admit that up to now I did not
> compare it to local filesystem, but from my past experiences with
> webservers I would expect nginx and lighttpd way ahead of the
> apaches...
>
> Also, I exprimented a bit with different settings for io-threads on the
> server (1, 2, 4, 8, and cache-size 64 or 128MB), but that didn't seem
> to make much of a difference. Same with read-ahead (which seems
> logical, as I test with relatively small images).
>
> So far I did not try the booster. I use fuse-2.7.0-glfs7. I also did not
> try the latest tla nor fuse-2.7.2-glfs8.
>
>
> Thanks a lot for any pointer,
>
> Sascha
>
>
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