Mastodawn

🌘 七秒核心編譯：技術剖析與效能優化
➤ 從數十秒到七秒的Linux核心編譯速度革命
✤ http://es.tldp.org/Presentaciones/200211hispalinux/blanchard/talk_2.html
本文深入探討如何在一臺32核心的PowerPC64機器上，將Linux核心（2.5版）的編譯時間縮短至七秒。作者首先介紹了核心編譯作為性能指標的重要性，特別是在處理 NUMA 架構下的擴展性問題。透過IBM pSeries p690伺服器進行基準測試，並利用剖析工具識別出效能瓶頸，尤其是在記憶體管理子系統的`__hash_page`函數中的`hash_table_lock`爭用問題。為瞭解決此問題，對PowerPC64的記憶體管理進行了重大重構，包括取消全域鎖定、引入TLB（Translation Lookaside Buffer）失效批次處理，以及優化頁面表格管理，最終實現了驚人的編譯速度。
+ 這篇文章對於想了解Linux核心效能優化極有幫助！特別是 `__hash_page` 的問
#Linux核心 #效能優化 #基準測試 #PowerPC64

The seven second kernel compile

RenézuCode Jul 13, 2024

Oops, I fixed #IBM's broken #PowerPC64 #Linux #kexec code again ;-) https://youtube.com/live/-BV4IpW5aLI #openfirmware #t2sde #opensource

Bevor Sie zu YouTube weitergehen

April

Feb 15, 2023

Raptor has new stuff coming up for 2024 Possibly leveraging RED Vantage? They have suggested the possibility in the past and are in close cooperation...
Hyped.
#powerpc #powerpc64 #computers #risc

Sun Microdevil Pte Ltd Dec 24, 2021

Anyone has version 2.00 of PowerPC/PowerPC64 ISA books?
Maybe my search skills isn't good enough, all I can find is version 2.02 and later

#askfedi #powerpc #powerpc64 #ppc #ppc64

ClaudioM Mar 4, 2020

I would love to run FreeBSD for #PowerPC64 on my Power Macintosh G5 dual-proc. I fear that most of the ports will be little-endian, but there is some hope here for big-endian #ppc64 systems. #powerpc

#POWER to the People: Making #FreeBSD a First Class Citizen on POWER | FreeBSD Foundation
https://www.freebsdfoundation.org/blog/power-to-the-people-making-freebsd-a-first-class-citizen-on-power/#fn1

POWER to the People: Making FreeBSD a First Class Citizen on POWER | FreeBSD Foundation

ClaudioM Jul 1, 2019

Ooooooh! I hope this includes big-endian #PowerPC Macs like the Power Macintosh G5 and other G5 models! #ppc64 #powerpc64 #freebsd #bsd #foss #floss

https://lists.freebsd.org/pipermail/freebsd-ppc/2019-June/010632.html

What's coming up for PowerPC

ClaudioM Mar 25, 2019

Ordered my dad an Airport Extreme for his aging (but still new for his use) Power Mac G5. I just have to find a suitable and modern(ish) browser he can use on it. #TenFourFox might his only option. #ppc64 #powerpc64 #powerpc #apple #macosx

Show thread

ClaudioM Nov 4, 2018

Did I forget to mention my upgrade of my Power Mac G5 running #Debian "sid" #powerpc64? I guess I did, but then again it was only an update of what's already installed. Nothing to see here...

#linux