| 00:00.53 | fray | build starting w/ gcc |
| 00:01.05 | fray | (Btw my target is the default i586 here.. nothing fancy) |
| 00:04.33 | fray | ok.. compile started.. gcc w/ ninja |
| 00:04.39 | fray | 52% @ 133 load.. :) |
| 00:07.34 | fray | 70% at 151 |
| 00:11.19 | fray | gcc seems to be using less memory then clang.. clang was usually aroung 40 GB free.. GCC was mostly around 56 or so.. |
| 00:11.32 | fray | currently running the final link... |
| 00:12.53 | fray | 102542 mhatle 20 0 12.885g 0.012t 1492 R 100.0 5.1 1:23.08 ld |
| 00:12.57 | fray | link is taking more memory.. odd |
| 00:13.31 | fray | lol.. I've never seen 0.013t before in top |
| 00:14.31 | fray | ld's up to 13 g.. 0.013t now.. |
| 00:14.47 | fray | and almost 3 minutes of processing.. you sure it wasn't runnign gold before? |
| 00:15.53 | fray | took 3:30 to link vs 2.. |
| 00:16.25 | fray | Event: TaskStarted |
| 00:16.25 | fray | Started: 1501804819.55 |
| 00:16.25 | fray | chromium-54.0.2810.2-r0: do_compile |
| 00:16.25 | fray | Elapsed time: 808.88 seconds |
| 00:17.06 | fray | so almost 5 minutes longer.. |
| 00:20.03 | fray | re-running... gcc + gold |
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| 00:24.41 | khem | fray: so you have 35% gain with clang |
| 00:25.04 | fray | ya.. trying with gold (on gcc) then will circle back to clang |
| 00:25.19 | khem | thats pretty good I think |
| 00:25.29 | behanw | khem: +1 |
| 00:25.38 | khem | may be you can write a small script to do some 15 builds to get an avg |
| 00:25.58 | behanw | khem: OE needs a build stats server. ;) |
| 00:26.08 | behanw | meta-stats... |
| 00:26.10 | khem | yes |
| 00:26.14 | behanw | Hmm. That's not a terrible idea |
| 00:26.17 | khem | oh-meta-meta |
| 00:26.22 | behanw | LOL |
| 00:26.36 | behanw | double-oh-meta? |
| 00:26.58 | khem | thats how you feel at 5p on a thu evening |
| 00:27.06 | behanw | LOL |
| 00:27.39 | behanw | khem: That's how I feel as I browse downtown SFO hotels for a last minute trip in 2 weeks... |
| 00:28.27 | khem | oh its nice down here now a days a bit hotter to my taste |
| 00:28.37 | khem | 92F today |
| 00:28.56 | behanw | khem: Gah. I can't think above 27C ;) |
| 00:29.09 | khem | SF is almost 5C cooler always |
| 00:29.10 | behanw | My CPU throttles. |
| 00:29.12 | khem | I am in SJ |
| 00:29.15 | behanw | I know. |
| 00:29.44 | behanw | LF has moved all classes from SJ to SF |
| 00:29.52 | behanw | So I'm in SJ a lot less these days... |
| 00:30.44 | fray | back to linking w/ gold |
| 00:30.47 | khem | good for you, |
| 00:31.06 | khem | behanw: I like SFO, once I am there, I just hate the going part |
| 00:31.13 | behanw | khem: +1 |
| 00:31.13 | fray | lol |
| 00:31.30 | fray | link time was about 1 minute |
| 00:31.34 | khem | so hope Elon's hyper loop will be materialized soon enough |
| 00:31.42 | behanw | khem: Agreed. |
| 00:31.49 | fray | wait no.. wasn't done |
| 00:31.54 | khem | fray: yep, thats in line with my expectation |
| 00:32.00 | behanw | fray: But wait... There's more! |
| 00:32.11 | khem | fray: btw lld ( linker from llvm project ) is even quicker than gold |
| 00:32.26 | behanw | khem: I still haven't played with it much |
| 00:32.28 | fray | <PROTECTED> |
| 00:32.35 | fray | still taking a hell of a lot of memory for linking.. |
| 00:32.40 | behanw | khem: How does it compare to gold? |
| 00:33.11 | behanw | fray: I can't imagine anything is slow on your compile monster. |
| 00:33.57 | khem | behanw: in some cases its twice faster |
| 00:34.02 | fray | Event: TaskStarted |
| 00:34.03 | fray | Started: 1501805973.29 |
| 00:34.03 | fray | chromium-54.0.2810.2-r0: do_compile |
| 00:34.03 | fray | Elapsed time: 708.30 seconds |
| 00:34.13 | fray | ya, gold took 100 seocnds (nearly 2 minutes off the link) |
| 00:34.16 | behanw | khem: We can all hate fray from here. ;) |
| 00:34.20 | fray | but memory usage was similar |
| 00:34.25 | fray | lol |
| 00:34.49 | behanw | fray I boast about your build machine in yocto classes |
| 00:34.58 | fray | "this is what you need"? |
| 00:35.12 | behanw | I use it as an example of the build machines people should aspire to |
| 00:35.15 | behanw | Yes. |
| 00:35.22 | behanw | "everyone is jealous" |
| 00:35.27 | fray | the average 'monster' machine around 'here' is a 2x24 core (2x48 thread) box.. |
| 00:35.34 | fray | I traded sanity for more cores.. |
| 00:35.44 | khem | if we could use LTO effectively, the build times will shrink even more atleast with clang |
| 00:35.44 | fray | the thing sounds like a hair salon w/ all of the driers going at the same time.. |
| 00:35.46 | behanw | fray: Sounds reasonable to me |
| 00:35.51 | fray | it's nearly impossible to sit in that lab.. |
| 00:35.57 | behanw | khem: Wouldn't that be awesome? |
| 00:36.07 | khem | fray: you should put this box in out house |
| 00:36.15 | behanw | fray: That's why you keep it in a separate room. |
| 00:36.30 | fray | try a different building.. ;) |
| 00:36.34 | behanw | LOL |
| 00:36.36 | fray | my office is 2 miles away |
| 00:36.39 | behanw | Even better |
| 00:36.57 | behanw | fray: I thought the build machine was at your house? |
| 00:37.09 | fray | ok.. building clang + gold now |
| 00:37.28 | fray | behanw it was delivered to my house.. which lead to the problem 'how do I lift it to get it in my jeep to bring it to the office' |
| 00:37.37 | fray | answer.. remove all of the power supplies and drives.. |
| 00:37.44 | behanw | That works |
| 00:37.45 | fray | and then still get one more person to help me carry it |
| 00:38.20 | fray | I should take a picture of it in my office.. you would laugh.... |
| 00:38.32 | behanw | You should! |
| 00:38.37 | fray | I put some foam ceiling tiles around it to help direct the airflow.. |
| 00:38.48 | fray | it looks like a homeless person built a hovel... |
| 00:42.42 | khem | behanw: http://lists.llvm.org/pipermail/llvm-dev/2016-December/107981.html |
| 00:42.48 | khem | read the second last para |
| 00:43.05 | khem | Rui is one of lld contributors |
| 00:44.22 | behanw | khem: That's great to hear! |
| 00:48.19 | fray | build done.. looking |
| 00:48.45 | fray | Event: TaskStarted |
| 00:48.46 | fray | Started: 1501807003.11 |
| 00:48.46 | fray | chromium-54.0.2810.2-r0: do_compile |
| 00:48.46 | fray | Elapsed time: 458.65 seconds |
| 00:48.51 | fray | it only cut 50 seconds off the build |
| 00:49.35 | fray | so clang + gold isn't too bad.. |
| 00:49.46 | fray | 7 1/2 minutes |
| 00:50.07 | behanw | fray: That is stupidly fast |
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| 00:51.37 | fray | (I don't normally have any reason to build chromium.. so I don't have a good comparison) |
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| 02:12.29 | khem | 708.30 to 458.65 is still 35% |
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| 07:46.20 | bluelightning | morning all |
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| 08:39.09 | melonipoika | morning |
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| 17:40.35 | kergoth | okay, what am i missing here. https://gist.github.com/kergoth/1c7a38c5a0ab1a2a84cb4b17971781d1 |
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