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Date:      Mon, 03 Jun 2013 12:24:04 +0100
From:      Vincent Hoffman <vince@unsane.co.uk>
To:        Fbsd8 <fbsd8@a1poweruser.com>
Cc:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Max top end computer for Freebsd to run on
Message-ID:  <51AC7CD4.2050807@unsane.co.uk>
In-Reply-To: <51ABAC4D.4040302@a1poweruser.com>
References:  <51ABAC4D.4040302@a1poweruser.com>

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On 02/06/2013 21:34, Fbsd8 wrote:
> I'm a sub second speed freak. What is the max number of cpu's and
> memory size that Freebsd can handle? Can it handle 16 4ghz cpu's and
> 32gb of memory? I need a gaming server with some really big balls for
> hundreds of jails. Money is not a deciding factor here, horse power is.
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It'll certainly support it, the biggest server I FreeBSD on at the
moment is:

root@parisnfsen:~ # head -20 /var/run/dmesg.boot
Copyright (c) 1992-2013 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
    The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.1-STABLE #4 r249837: Wed Apr 24 13:37:24 CEST 2013
    root@parisnfsen.nottellingyou.net:/usr/obj/usr/src/sys/PARISNFSEN amd64
gcc version 4.2.1 20070831 patched [FreeBSD]
CPU: Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz (2394.05-MHz
K8-class CPU)
  Origin = "GenuineIntel"  Id = 0x206c2  Family = 0x6  Model = 0x2c 
Stepping = 2
 
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
 
Features2=0x29ee3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,POPCNT,AESNI>
  AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
  AMD Features2=0x1<LAHF>
  TSC: P-state invariant, performance statistics
real memory  = 34359738368 (32768 MB)
avail memory = 33090797568 (31557 MB)
Event timer "LAPIC" quality 600
ACPI APIC Table: <DELL   PE_SC3  >
FreeBSD/SMP: Multiprocessor System Detected: 16 CPUs
FreeBSD/SMP: 2 package(s) x 4 core(s) x 2 SMT threads

as other people have said though, one big server is often not the best
answer, keep things like disk io and resiliency in mind.
This is a PowerEdge R410 seems to be pretty happy trundling along on
9-STABLE

Vince



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