Miroslav Lachman wrote:
Ivan Voras wrote:
Miroslav Lachman wrote:
[..]
I have more strange issue with Lighttpd in jail on top of ZFS.
Lighttpd is serving static content (mp3 downloads thru flash player).
Is runs fine for relatively small number of parallel clients with
bandwidth about 30 Mbps, but after some number of clients is reached
(about 50-60 parallel clients) the throughput drops down to 6 Mbps.
I can server hundereds of clients on same HW using Lighttpd not in
jail and UFS2 with gjournal instead of ZFS reaching 100 Mbps (maybe
more).
I don't know if it is ZFS or Jail issue.
Do you have actual disk IO or is the vast majority of your data served
from the caches? (actually - the same question to the OP)
I had ZFS zpool as mirror of two SATA II drives (500GB) and in the peak
iostat (or systat -vm or gstat) shows about 80 tps / 60% busy.
In case of UFS, I am using gmirrored 1TB SATA II drives working nice
with 160 or more tps.
Both setups are using FreeBSD 7.x amd64 with GENERIC kernel, 4GB of RAM.
As the ZFS + Lighttpd in jail was unreliable, I am no longer using it,
but if you want some more info for debuging, I can set it up again.
For what it's worth, I have just set up a little test on a production
machine with 3 500 GB SATA drives in RAIDZ, FreeBSD 7.2-RELEASE. The
total data set is some 2 GB in 5000 files but the machine has only 2 GB
RAM total so there is some disk IO - about 40 IOPS per drive. I'm also
using Apache-worker, not lighty, and siege to benchmark with 10
concurrent users.
In this setup, the machine has no problems saturating a 100 Mbit/s link
- it's not on a LAN but the latency is close enough and I get ~~ 11 MB/s.
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
