Comment by hrgiger | Hacker News Reader

Comment by hrgiger | Hacker News Reader

I have a hobby project that my target was following similar learning path, I could only recommend if you also work on your own server dont forget software side,perf (http://brendangregg.com/perf.html) is a god not just kernel side, as well as your own software, as part of my build I was always checking below command:

'perf stat -e task-clock,cycles,instructions,cache-references,cache-misses,branches,branch-misses,faults,minor-faults,cs,migrations -r 3 nice taskset 0x01 ./myApplication -j XXX '

Additions I would have I have benefited:

* I use latest trimmed kernel, with no encryption, extra device etc...

* You might want to check RT kernels, finance & trading guys always good guide if you can

* Removed all boilerplate app stack from linux or built small one, I even now considering getting rid of network stack for my personal use

* Disable hyper-threading: I had a short living workers,this doesnt helped me for my case , you might want to validate first which one is best suited for your needs

* Check also your CPU capabilities (i.e. with avx2 & quad channel I get great improvements) and test them to make sure

* A system like this quickly get hot, watch temps, even short running tests might give you happy results but long term temps easily hit the wall that bios will not give a fuck but only throttle

I get that it was a hobby project so you could just be doing these optimizations for the heck of it. But if you do have measurements of how much each of these factors contributed (especially the two points about custom kernels), it would be useful.

Please don’t take offense at this my friend, it is genuinely constructive criticism. Slow down a little bit and re-read what you’re typing. I can’t understand half of what you’ve written here because it is so poorly done. It is a shame because I feel like you’re trying to share interesting information it’s just extremely hard to parse whatever it is you’re trying to say

Interesting. I found the comment rather succinct and to the point. Maybe you are not the target audience.

That might be true, maybe you could help me understand what this means:

“Additions I would have I have benefited“

Other tricks I have benefited from:

I am afraid that this looks like a nitpicking. Even if you can't imagine what the original intent might be behind that sentence by the sentence alone, the contents of the bullet points make it clear what information they represent. So even if that sentence is dropped entirely, I wouldn't have had any difficulty understanding what the comment is about, and its useful information content.

>I can’t understand half of what you’ve written here because it is so poorly done. It is a shame because I feel like you’re trying to share interesting information it’s just extremely hard to parse whatever it is you’re trying to say

While their writing is not perfect English, I had no problem understanding everything they wrote.

I’m really having trouble parsing this bit, could you explain for me?

“Additions I would have I have benefited“

I thought it was "Additions I would have benefited from" but then reading them it is clearly "Additions I have benefited from".

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