Things to optimize - performance

[deputinizer]

• utils.Decode
• templates.Parse
• job.getNextPacket

[Spoiler] pprof CPU

[arriven]

for getNextPacket: have you tried setting StaticPacket to true in the config? should work on tcp/udp jobs as well as they just forward that argument to packetgen

[deputinizer]

Well I'm using the default config.
https://github.com/db1000n-coordinators/LoadTestConfig/blob/e3ed4702c7d19347668ac5842d058172b596c329/config.v0.7.json#L435

There's no StaticPacket there

[arriven]

I'm not sure you can optimize other two without defeating their purpose completely. The only other thing that could be done is porting that StaticPacket thing to http flood to enable sending more traffic when no variablility is needed

[deputinizer]

Well there should be something faster, maybe:

• just pure function and arg (random_payload 10)
• JIT - just in time compiled template? Is there anything in go?

[deputinizer]

Because compiling config is a no-go? 😋
https://github.com/valyala/quicktemplate

[arriven]

pure function and arg could work, but it would make the config even more bloated and I'm not completely sure it would be much faster, especially compared to static version which parses templates only once when new config is received. Also current implementation is already not that bad - in go you have separate Parse and Execute functions for templates where Parse takes significantly more resources than Execute. I don't think it's the most effective implementation but it does its job quite well

[arriven]

There's no StaticPacket there

Yeah, updating all the admin processes takes some time

[deputinizer]

Nice, you added static :)

[Spoiler] Here's dynamic

[arriven]

hmm, having thought about it more, with current usage it might be easier to switch the code to use static by default and dynamic would have to be specified explicitly

[arriven]

it won't affect memory usage but the CPU profile should get a lot better