[erlang-questions] Re: Unicast 40k messages, $1000 bounty (Hot Wheels!)

[litao cheng]

wow, so cool, can you give me your OTP R13B02-1 patches ?
thanks!

2009/11/4 Feng Yu <mryufeng@REDACTED>

> hi all,
>    I achieve the goal with my patched otp R13B02-1.
> Server:
> #taskset -c 1 /usr/src/xxx/bin/erl -pa ebin mochiweb/ebin -boot start_sasl
> +A 8 +K true +P 1200000   -hotwheels cluster  -hotwheels listen_port 8081
> -name hotwheels@`hostname`s hotwheels start
> publish,info: [{memory,757453},
>               {owner,<0.84.0>},
>               {heir,none},
>               {name,subs},
>               {size,50000},
>               {node,'hotwheels@REDACTED'},
>               {named_table,false},
>               {type,set},
>               {keypos,1},
>               {protection,protected}]
> cost time: 871.379
>
> Client:
> #taskset -c 0 /usr/src/xxx/bin/erl -boot start_sasl -pa ebin mochiweb/ebin
> +A 8 +K true +P 1200000   -hotwheels cluster  -hotwheels listen_port 8081
> -name debug
> (debug@REDACTED)8>  bot:test(flashbot,50000).
> setup connection...
> setup done
>
> =INFO REPORT==== 4-Nov-2009::17:41:32 ===
> setup: 5843.08ms, good: 50000, bad: 0, total run: 8593.22ms
>    0.0510ms | min
>  500.0000ms | 15943  -  31.89%
>  1000.0000ms | 16949  -  33.90%
>  1500.0000ms | 17108  -  34.22%
>  1349.0090ms | max
> ok
>
> My machine hardware:
>
> root@REDACTED:/proc/sys/net/ipv4# cat /proc/cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 23
> model name      : Pentium(R) Dual-Core  CPU      E5200  @ 2.50GHz
> stepping        : 6
> cpu MHz         : 1200.000
> cache size      : 2048 KB
> physical id     : 0
> siblings        : 2
> core id         : 0
> cpu cores       : 2
> apicid          : 0
> initial apicid  : 0
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 10
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov
> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
> constant_tsc
> arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr
> pdcm
> lahf_lm
> bogomips        : 4986.70
> clflush size    : 64
> power management:
>
> processor       : 1
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 23
> model name      : Pentium(R) Dual-Core  CPU      E5200  @ 2.50GHz
> stepping        : 6
> cpu MHz         : 1200.000
> cache size      : 2048 KB
> physical id     : 0
> siblings        : 2
> core id         : 1
> cpu cores       : 2
> apicid          : 1
> initial apicid  : 1
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 10
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov
> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
> constant_tsc
> arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr
> pdcm
> lahf_lm
> bogomips        : 4987.44
> clflush size    : 64
> power management:
>
> Os:
> # uname -a
> Linux nd-desktop 2.6.31-14-generic #3 SMP Sun Nov 1 23:03:10 CST 2009 i686
> GNU/Linux
>
> 专注 高性能容错分布式服务器的研究和实现
> http://blog.yufeng.info
>
>
>
> On Sat, Jul 18, 2009 at 2:14 PM, Joel Reymont <joelr1@REDACTED> wrote:
>
> > Folks,
> >
> > Janus has been renamed to Hot Wheels and now lives at
> > http://github.com/wagerlabs/hotwheels/tree/master.
> >
> > The goal is still to get a broadcast to 40k users in < 1s.
> >
> > I'm making several protocol changes, e.g. {packet, 2}
> > and moving away from JSON to a simple protocol where
> > every packet has a 12 byte timestamp to measure latency,
> > 1 byte for message type (1 = subscribe, 2 = unsubscribe),
> > and size + body for topic, event, etc.
> >
> >        Thanks, Joel
> >
> > ---
> > Mac hacker with a performance bent
> > http://www.linkedin.com/in/joelreymont
> >
> >
> > ________________________________________________________________
> > erlang-questions mailing list. See http://www.erlang.org/faq.html
> > erlang-questions (at) erlang.org
> >
> >
>