What are the hardware configuration specifications for the public cloud based load generators that Blazemeter tests run on?
All load generators run on processors comparable to AWS m4.large instances as described on https://aws.amazon.com/ec2/instance-types/ under the M4 tab.
The OS is Linux Ubuntu 16.04.1 as listed in the beginning of any bzt.log:
[2020-10-06 12:01:55,704 DEBUG root] OS: uname_result(system='Linux', node='4fe9aa7ae8b8', release='4.15.0-118-generic', version='#119~16.04.1-Ubuntu SMP Tue Sep 8 14:54:40 UTC 2020', machine='x86_64', processor='x86_64')
However this may change over time.