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Linus Torvalds: After Big Linux Performance Hit, Spectre v2 Patch Needs Curbs
2018-11-26 10:18:40 +0000
Major slowdowns caused by the new Linux 4.20 kernel have been traced to a mitigation for Spectre variant 2 that Linux founder Linus Torvalds now wants restricted.
As noted by Linux news site Phoronix, the sudden slowdowns have been caused by a newly implemented mitigation called Single Thread Indirect Branch Predictors (STIBP), which is on by default in the Linux 4.20 kernel for Intel systems with up-to-date microcode.
Taming the Rate of Change
2018-11-25 10:22:05 +0000
Change frequency is an indicator of time to create business value. In order to create value in a given amount of time, you need to be able to release your code a certain number of times and learn from those changes. The less frequently you release, the longer it can take to create value. Increase in rate of change shows that you’re reducing the time to create value, thus increasing team performance. Conversely, low change frequency indicates high time to create value and low team performance.
The alias And unalias Commands Explained With Examples
2018-11-24 10:27:23 +0000