5 ms·

Holy crap, Brendan Gregg's site went down. Proof he is human I guess?

by ty_a 9y ago

rcarmo 9y ago
I still managed to read the whole thing. Quite fascinating, really, considering the lengths he went into tracking the ancient (1993) patch that turned CPU load averages into whole system load averages.
- dman 9y ago
  I am beginning to suspect that Brendan Gregg is not a real person, but a collection of extremely talented individuals publishing under a pseudonym. ( https://en.wikipedia.org/wiki/Nicolas_Bourbaki https://en.wikipedia.org/wiki/Nicolas_Bourbaki ) PS: yes this is meant to be a compliment on the prolific output on performance related topics that Greg puts up on his page.
  - brendangregg 9y ago
    Thanks. It's clones. http://www.brendangregg.com/Images/brendan_clones2006.jpg http://www.brendangregg.com/Images/brendan_clones2006.jpg (I made that in response to a similar comment back then...)
    - dman 9y ago
      Thats amazing!
    - bogomipz 9y ago
      This made me laugh out loud. Thanks. Also wow, what a time capsule that picture is in terms of office style and computer hardware.
- pmoriarty 9y ago
  I wonder what a what a good solution for aggregating all of this data and making it more easily searchable next time would look like, and if there's anyone working on it. It seems like such a waste to have it scattered all over the place, and for all the author's hard work in tracking it down to go to waste.
deleted 9y ago
[deleted]
brendangregg 9y ago
Yes, sorry. I guess proof this is a hobby on some personal hosting that can get overloaded. Try refreshing. Although it's load averages (couldn't resist) aren't that high: 10:36:09 up 34 days, 20:05, 1 user, load average: 2.39, 2.34, 2.08
- DamonHD 9y ago
  Very good. And yes I'd noticed on many *nx systems that it didn't seem to be pure CPU (I think I once had a single-CPU SunOS 4.1.1 NFS server report into the tens or hundreds because disc was slow) I've mainly been treating it as if CPU for ~30Y. Goodness knows what I might have tuned better! Thank you!
- ty_a 9y ago
  Very much appreciate what you give away for free!
- mmjaa 9y ago
  Thank you for the superlative spelunking, that was a great trip down memory lane! :)
- unilynx 9y ago
  Load averages should probably get even higher and include network load - right now, a saturated ethernet card doesn't show up in the load (network card load is one of the next metrics I check next if load average and wait%/user% etc aren't telling what's wrong)
seanp2k2 9y ago
The cobbler's children have no shoes :) Just because we can deploy services that can take a million RPS doesn't mean we have our side projects / hobby sites in order, hah. I worked in hosting for a long time and I had a personal WordPress site which would get hacked every other month. I literally fixed that problem daily at $JOB, but couldn't be arsed to do something better for myself. It worked, and it was quick and easy. The point was the content. These days, I'd just use something like Medium or Tumblr. Let someone else worry about hosting it :)

Holy crap, Brendan Gregg's site went down. Proof he is human I guess?

by ty_a 9y ago

Holy crap, Brendan Gregg's site went down. Proof he is human I guess?

I still managed to read the whole thing. Quite fascinating, really, considering the lengths he went into tracking the ancient (1993) patch that turned CPU load averages into whole system load averages.

dman 9y ago
I am beginning to suspect that Brendan Gregg is not a real person, but a collection of extremely talented individuals publishing under a pseudonym. ( https://en.wikipedia.org/wiki/Nicolas_Bourbaki https://en.wikipedia.org/wiki/Nicolas_Bourbaki ) PS: yes this is meant to be a compliment on the prolific output on performance related topics that Greg puts up on his page.
- brendangregg 9y ago
  Thanks. It's clones. http://www.brendangregg.com/Images/brendan_clones2006.jpg http://www.brendangregg.com/Images/brendan_clones2006.jpg (I made that in response to a similar comment back then...)
  - dman 9y ago
    Thats amazing!
  - bogomipz 9y ago
    This made me laugh out loud. Thanks. Also wow, what a time capsule that picture is in terms of office style and computer hardware.
pmoriarty 9y ago
I wonder what a what a good solution for aggregating all of this data and making it more easily searchable next time would look like, and if there's anyone working on it. It seems like such a waste to have it scattered all over the place, and for all the author's hard work in tracking it down to go to waste.

deleted 9y ago

[deleted]

brendangregg 9y ago

Yes, sorry. I guess proof this is a hobby on some personal hosting that can get overloaded. Try refreshing. Although it's load averages (couldn't resist) aren't that high: 10:36:09 up 34 days, 20:05, 1 user, load average: 2.39, 2.34, 2.08

DamonHD 9y ago
Very good. And yes I'd noticed on many *nx systems that it didn't seem to be pure CPU (I think I once had a single-CPU SunOS 4.1.1 NFS server report into the tens or hundreds because disc was slow) I've mainly been treating it as if CPU for ~30Y. Goodness knows what I might have tuned better! Thank you!
ty_a 9y ago
Very much appreciate what you give away for free!
mmjaa 9y ago
Thank you for the superlative spelunking, that was a great trip down memory lane! :)
unilynx 9y ago
Load averages should probably get even higher and include network load - right now, a saturated ethernet card doesn't show up in the load (network card load is one of the next metrics I check next if load average and wait%/user% etc aren't telling what's wrong)

seanp2k2 9y ago

The cobbler's children have no shoes :) Just because we can deploy services that can take a million RPS doesn't mean we have our side projects / hobby sites in order, hah. I worked in hosting for a long time and I had a personal WordPress site which would get hacked every other month. I literally fixed that problem daily at $JOB, but couldn't be arsed to do something better for myself. It worked, and it was quick and easy. The point was the content. These days, I'd just use something like Medium or Tumblr. Let someone else worry about hosting it :)