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From Mark Nottingham <m...@yahoo-inc.com>
Subject Re: ATS polygraph TEST
Date Thu, 17 Mar 2011 18:42:37 GMT
What configuration, and how many boxes, did you use to generate the load? I haven't run polygraph
for a while, but it looks like you were limited on the client side, not by TS.

Cheers,


On 16/03/2011, at 10:42 PM, Geun-ryeol Lee wrote:

> hi all.
> 
> I was heard ATS is very powerful (30,000TPS)  so I did polygraph test (http://www.web-polygraph.org/)
> 
> but, The following data are  insufficient to use ATS on my small company.
> 
> I do want how to fix ATS config or system setting...
> 
> 
> 
> 
> -- TEST Result
> 
> 1. System Environment
>   a. system 
>    - OS :  CentOS 5
>    - Intel(R) Xeon(R) CPU   X5450  @ 3.00GHz * 8
>    - Memory 4G
>    - Cache Disk :  25G  (/dev/sda4)
> 
>    - ATS : trafficserver-2.1.5-unstable
>    - Test Tool: Polygraph 3.1.5
> 
>  root@bora ~]# cat /proc/sys/fs/file-max 
>                     122880
> [root@bora ~]# cat /proc/sys/fs/file-nr
>                     11730   0       122880
> 
>      b. ATS setting
>     - record.conf
>     CONFIG proxy.config.log.squid_log_enabled INT 1       # squid log enable
>     CONFIG proxy.config.log.squid_log_is_ascii INT 1  
>     CONFIG proxy.config.reverse_proxy.enabled INT 0       
>      - storage.conf
>        /dev/sda4   # 25G
> 
> 
>  2. Result
> # Proxy mode
> 
> 
> ATS 2000Req/sec
> ATS 1500 Req/sec
> ATS 1000 Req/sec
> Throughput
> 1999.28xact/sec or 83.00Mbits/sec
> 1505.66xact/sec or 63.91Mbits/sec
> 999.92xact/sec or 42.82Mbits/sec
> Response Time
> 2.64sec mean
> 1.52sec mean
> 14msec mean
> Hit Ratio
> 98.29% DHR and 96.80% BHR
> 98.40% DHR and 96.79% BHR
> 98.08% DHR and 96.77% BHR
> Errors
> 1.07% (38443xact out of 3598852xact)
> 0.42% (11374xact out of 2710401xact)
> 0.00% (0xact out of 1799973xact)
> 
> # No caching reverse mode
> 
> 
> ATS 2000Req/sec
> ATS 1500 Req/sec
> ATS 1000 Req/sec
> Throughput
> 2484.76xact/sec or 93.44Mbits/sec
> 1666.27xact/sec or 54.02Mbits/sec
> 998.29xact/sec or 43.61Mbits/sec
> Response Time
> 2.72sec mean
> 2.65sec mean
> 1.65sec mean
> Hit Ratio
> - 0.50% DHR and 0.19% BHR
> - 0.27% DHR and 0.53% BHR
> - 0.00% DHR and 0.61% BHR
> Errors
> 1.82% (2708xact out of 149087xact)
> 1.13% (1126xact out of 99993xact)
> 0.61% (10955xact out of 1797000xact)
> 
> # FD count
> [root@bora ~] # ps aux |grep traffic
> 
> root 26490 /usr/local/ATS.U/bin/traffic_cop
> 
> nobody 26492 /usr/local/ATS.U/bin/traffic_manager
> 
> nobody 26504 /usr/local/ATS.U/bin/traffic_server -M -A,8:X
> 
> 
> [root@bora ~]# ls -al /proc/26504/fd |grep socket | wc -l
> 
> PID : FD Count
> 
> 26490 : 1
> 
> 26492 : 10
> 
> 26504 : 8914
> 
> 
> # I/O state
> avg-cpu: %user %nice %system %iowait %steal %idle
> 
> 1.67 0.00 2.00 11.46 0.00 84.88
> 
> 
> Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
> 
> avgrq-sz avgqu-sz await svctm %util
> 
> sda 0.00 312.67 592.33 58.00 14127.33 2965.33
> 
> 26.28 5.08 7.73 1.42 92.43
> 
> sda1 0.00 229.33 0.00 50.00 0.00 2234.67
> 
> 44.69 0.16 3.26 0.05 0.27
> 
> ~~
> 
> sda4 0.00 0.00 591.67 0.00 14122.00 0.00
> 
> 23.87 4.87 8.15 1.56 92.37
> 
> 
>  
> # TOP
> [root@bora ~]# top
> 
> top - 11:44:45 up 27 days, 18:25, 12 users, load average: 8.00, 6.74, 4.12
> 
> Tasks: 207 total, 1 running, 206 sleeping, 0 stopped, 0 zombie
> 
> Cpu0 : 0.6%us, 0.4%sy, 0.0%ni, 97.1%id, 1.1%wa, 0.1%hi, 0.7%si, 0.0%st
> 
> Cpu1 : 0.4%us, 0.4%sy, 0.0%ni, 94.7%id, 4.4%wa, 0.0%hi, 0.0%si, 0.0%st
> 
> Cpu2 : 0.6%us, 0.6%sy, 0.1%ni, 98.6%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st
> 
> Cpu3 : 0.6%us, 0.6%sy, 0.1%ni, 97.6%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st
> 
> Cpu4 : 0.4%us, 0.3%sy, 0.0%ni, 98.7%id, 0.5%wa, 0.0%hi, 0.0%si, 0.0%st
> 
> Cpu5 : 0.4%us, 0.2%sy, 0.0%ni, 99.4%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st
> 
> Cpu6 : 1.2%us, 0.9%sy, 0.1%ni, 95.6%id, 1.3%wa, 0.0%hi, 0.8%si, 0.0%st
> 
> Cpu7 : 0.7%us, 0.4%sy, 0.1%ni, 98.7%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st
> 
> Mem: 4043152k total, 2876040k used, 1167112k free, 86880k buffers
> 
> Swap: 2096472k total, 19000k used, 2077472k free, 1706116k cached
> 
> 
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 
> 26504 nobody 5 0 605m 301m 4584 S 19.4 7.6 5:20.02 traffic_server
> 
> 
> 
> <atu2000.png>
> 
> 
> 
> <atu1000.png>
> 
> ---
> Y'know, I believe if there's any kind of God, it wouldn't be in any of us. 
> Not you, or me... 
> but just this little space in between. 
> If there's any kind of magic in this world, it must be 
> in the attempt of understanding someone, sharing something . 
> 

--
Mark Nottingham       mnot@yahoo-inc.com



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