On Mon, Jun 07, 2010 at 11:29:56AM +0200, Juraj Pisarcik wrote: > My highest number on 2x dualcore Opteron with 16GB RAM was approx. 50 servers. > It was mostly webservers (Apache Tomcat, HTTPD, ...) and databases > and some other stuff(Samba, ...). Problem was SHM, because I'm still > running 32-bit kernel on this server. DB servers needs a lot of SHM > and on 32-bit is upper limit max. 4GB SHM. I'm running 253 uloaded vservers (nginx+postfix+ssh) on a 4 GByte dual-core Atom server. eryllium:~# vserver-stat CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME 2 10 328.7M 14.2M 14m31s17 10m37s84 8d04h45 v2 3 9 357.1M 14.1M 9m03s04 6m23s94 8d04h45 v3 4 9 307.6M 14.2M 8m12s62 5m59s13 8d04h45 v4 5 9 307.2M 14.2M 8m04s78 5m59s68 8d04h44 v5 6 9 378.6M 14.2M 10m30s55 7m56s51 8d04h44 v6 7 9 357.1M 14.2M 10m47s92 7m58s68 8d04h44 v7 ... 252 9 357.1M 12.4M 4m40s68 3m37s14 8d04h45 v252 253 9 357.1M 12.4M 4m20s41 3m19s12 8d04h45 v253 254 9 356.6M 12.4M 5m43s40 3m47s88 8d04h45 v254 beryllium:~# w 15:05:14 up 8 days, 4:48, 1 user, load average: 0.13, 0.14, 0.45 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root pts/0 helium.ativel.co 15:04 0.00s 0.05s 0.02s w beryllium:~# cat /proc/meminfo MemTotal: 4063316 kB MemFree: 441340 kB Buffers: 854120 kB Cached: 319320 kB SwapCached: 32860 kB Active: 1192708 kB Inactive: 1010560 kB Active(anon): 575204 kB Inactive(anon): 456456 kB Active(file): 617504 kB Inactive(file): 554104 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 3229056 kB SwapFree: 3082628 kB Dirty: 216 kB Writeback: 0 kB AnonPages: 997936 kB Mapped: 8792 kB Slab: 1105764 kB SReclaimable: 913432 kB SUnreclaim: 192332 kB PageTables: 191452 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 5260712 kB Committed_AS: 4014436 kB VmallocTotal: 34359738367 kB VmallocUsed: 281164 kB VmallocChunk: 34359454079 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 3584 kB DirectMap2M: 4190208 kB > Juraj > > On Thu, Jun 3, 2010 at 7:44 PM, JF Straeten <jfstraeten@scarlet.be> wrote: > > Hi, > > > > On Thu, Jun 03, 2010 at 10:04:33AM -0700, Nirmal Guhan wrote: > > > >> Has anyone in this list done a scalability test on vserver ? Am > >> particularly interested to know how many virtual servers can be > >> spawned in a single host? > > > > I'm aware of this paper, related to OpenVZ : > > > > http://www.montanalinux.org/openvz-experiment.html > > > > It can only be better under VServer :-) > > > > Hih, > > > > -- > > > > JFS. > > -- Eugen* Leitl <a href="leitlhttp://leitl.org">leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE