Simulate high traffic using data from log files

high-loadload-testingstress-testing

I need to test a saas service load by sending 1000s requests/sec from multiple remote sources. The urls need to be from my access log.

Is there a service that can simulate high traffic using the data from my log files?

Best Answer

You can replay a log with httperf

Here are some instructions: http://dekoder.wordpress.com/2010/11/23/replay-traffic-with-httperf/

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Linux Hard Disk Load – How to Monitor Hard Disk Load on Linux

You can get a pretty good measure of this using the iostat tool.

% iostat -dx /dev/sda 5

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               0.78    11.03    1.19    2.82    72.98   111.07    45.80     0.13   32.78   1.60   0.64

The disk utilisation is listed in the last column. This is defined as

Percentage of CPU time during which I/O requests were issued to the device (band-width utilization for the device). Device saturation occurs when this value is close to 100%.

Are there any tools for load / stress testing that can simulate image, video and audio uploads to Amazon EC2

There are lots of cloud-hosted load-testing services out there which will do GET and simple POST requests en masse. Very few support file upload.

Browser Mob is one that supports upload. They're pricey though.

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Linux Hard Disk Load – How to Monitor Hard Disk Load on Linux

Are there any tools for load / stress testing that can simulate image, video and audio uploads to Amazon EC2

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