Frequently Asked Questions
About Benchmarking with Web Polygraph
Frequently Asked Questions (with answers!) about Web Polygraph, benchmarking, and more.
About Web Polygraph
2.1 I had a hard time compiling Polygraph 2.5.0 on Redhat 6.2 Linux
Running a Polygraph Test
(v2.5.1) dumps core on Linux
3.2 During PolyMix-3, the clients are in the fill phase, but the servers are in the dec1 phase
3.3 PolyMix-2 fill phase cachable was 100%; why is it 80% for PolyMix-3?
3.4 Can I run a test with just one IP address per machine?
3.5 The PolyMix-3 working set size is much larger than PolyMix-2?
3.6 Can I run more than 1000 robots on a single machine?
3.7 What is the effect of simply removing a phase from the schedule?
3.8 How can I calculate the fill phase duration for a PolyMix-3 test?
3.9 How does the downtime test work?
PolyMix-3 IP Addressing
4.1 Flat vs Routed configuration
4.2 IP Address Assignment
4.3 How do I configure IP addresses for PolyMix-3?
4.4 Do clients and servers have a default route?
4.5 Can I use the proxy as my router?
4.6 In a routed test network, where does the monitoring PC go?
5.1 What are
5.2 Why is PolyMix-3 offered hit ratio not 55%?
5.3 gnuplot: Cannot open load file '-persist'
Polygraph Inner Workings
6.1 What is
6.2 What controls the number of open sockets, as shown in the last column of Polygraph's console output?
6.3 What can you tell me about reply sizes?
About the Third Cache-Off
7.1 What is the timeline for the Cache-Off?
7.2 Where is the Third Cache-Off being held?
7.3 For soft entry into the third cache-off event, you state that you require an auto-generated Polygraph report. What does that mean?
7.4 Why do you require the auto-generated report?
7.5 Cache Filling
7.6 Participation Fees
7.7 When are the results going to be made public?
8.1 What do you use to sync time on your FreeBSD boxes?
8.2 How can I use NTP to synchronize my system clocks?
Web Traffic Workloads and Characterization
9.1 Whats the average size of a document?
TCP Maximum Segment Lifetime
10.1 MSL with Windows 2000
11.1 Can you please give me some information on why I failed?
About this Document