On Sa, Mär 22, 2008 at 12:51:14 -0300, Valter Douglas Lisbôa Jr. wrote:
>
> Hi folk,
>
Hello Valter,
> In this week, I migrate three Slackware VPN/Firewall/Proxy machines of a
> customer to a LFS-based with Xen and I notice a delay on dom0 of the central
> machine, The domu is fine and very fast (my customer notice a velocity
> increase to access the VPN points and slightly for Internet access).
>
> In dom0 a vim command delays 1-3 seconds to open a file, in domu is
> practicaly
> instantaneous, any other program has the increased on hypervisor, including
> the xm command. The VPN clients (and any other machine I isntalled this
> distro) don't show any delay.
>
> I think this is a hardware issue since this is the only machine with this
> configuration. The other VPN points has AMD based arch.
>
> Any ideas?
1) check your domain 0 dns config.
2) check that /etc/hosts is ok
3) check that lo interface is up
>
> kernel-2.6.18.8 (dom0 and domu)
> xen 1.3.1
> Everything compiled to Pentium4 (in this machine case)
>
> Hardware:
>
> SATA 80GB.
>
> /proc/cpuinfo
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 15
> model : 4
> model name : Intel(R) Pentium(R) 4 CPU 2.80GHz
> stepping : 1
> cpu MHz : 2799.914
> cache size : 1024 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 5
> wp : yes
> flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36
> clflush
> dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pni monitor ds_cpl cid
> xtpr
> bogomips : 5604.39
>
> processor : 1
> vendor_id : GenuineIntel
> cpu family : 15
> model : 4
> model name : Intel(R) Pentium(R) 4 CPU 2.80GHz
> stepping : 1
> cpu MHz : 2799.914
> cache size : 1024 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 5
> wp : yes
> flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36
> clflush
> dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pni monitor ds_cpl cid
> xtpr
> bogomips : 5604.39
>
> lspci
> 00:00.0 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host
> Bridge
> 00:00.1 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host
> Bridge
> 00:00.2 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host
> Bridge
> 00:00.3 Host bridge: VIA Technologies, Inc. PT890 Host Bridge
> 00:00.4 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host
> Bridge
> 00:00.7 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host
> Bridge
> 00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
> 00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL-8139/8139C/8139C+ (rev 10)
> 00:0f.0 IDE interface: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller
> (rev 80)
> 00:0f.1 IDE interface: VIA Technologies, Inc.
> VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
> 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller (rev 81)
> 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller (rev 81)
> 00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller (rev 81)
> 00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller (rev 81)
> 00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
> 00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge
> [KT600/K8T800/K8T890 South]
> 00:11.5 Multimedia audio controller: VIA Technologies, Inc.
> VT8233/A/8235/8237
> AC97 Audio Controller (rev 60)
> 00:11.6 Communication controller: VIA Technologies, Inc. AC'97 Modem
> Controller (rev 80)
> 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)
> 01:00.0 VGA compatible controller: VIA Technologies, Inc. UniChrome Pro IGP
> (rev 01)
>
> free -m (total memory on system is 1GB)
> total used free shared buffers cached
> Mem: 128 103 25 0 36 38
> -/+ buffers/cache: 28 99
> Swap: 258 0 258
>
> --
> Valter Douglas Lisbôa Jr.
> Sócio-Diretor
> Trenix - IT Solutions
> "Nossas Idéias, suas Soluções!"
> www.trenix.com.br
> contato@xxxxxxxxxxxxx
> Tel. +55 19 3402.2957
> Cel. +55 19 9183.4244
>
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--
WBR, i.m.chubin
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