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The Lounge War Stories Linus Torvalds reply about Meltdown and Spectre. Post 303012275 by Corona688 on Thursday 1st of February 2018 04:07:36 PM
Old 02-01-2018
Quote:
Originally Posted by dodona
I read that with the 4.15 Kernel with build-in patches for the hypothetical problem comes with 15-30% performance loss.
That's way overblown, because the performance loss happens during the switch between userspace and kernelspace. Sensible programs don't spend most of their time doing thousands of tiny system calls.

A 30% reduction in performance there is bad, but not the same as a 30% slower computer.
 

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GIT-MV(1)							    Git Manual								 GIT-MV(1)

NAME
git-mv - Move or rename a file, a directory, or a symlink SYNOPSIS
git mv <options>... <args>... DESCRIPTION
This script is used to move or rename a file, directory or symlink. git mv [-f] [-n] <source> <destination> git mv [-f] [-n] [-k] <source> ... <destination directory> In the first form, it renames <source>, which must exist and be either a file, symlink or directory, to <destination>. In the second form, the last argument has to be an existing directory; the given sources will be moved into this directory. The index is updated after successful completion, but the change must still be committed. OPTIONS
-f, --force Force renaming or moving of a file even if the target exists -k Skip move or rename actions which would lead to an error condition. An error happens when a source is neither existing nor controlled by GIT, or when it would overwrite an existing file unless -f is given. -n, --dry-run Do nothing; only show what would happen AUTHOR
Written by Linus Torvalds <torvalds@osdl.org[1]> Rewritten by Ryan Anderson <ryan@michonline.com[2]> Move functionality added by Josef Weidendorfer <Josef.Weidendorfer@gmx.de[3]> DOCUMENTATION
Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org[4]>. GIT
Part of the git(1) suite NOTES
1. torvalds@osdl.org mailto:torvalds@osdl.org 2. ryan@michonline.com mailto:ryan@michonline.com 3. Josef.Weidendorfer@gmx.de mailto:Josef.Weidendorfer@gmx.de 4. git@vger.kernel.org mailto:git@vger.kernel.org Git 1.7.1 07/05/2010 GIT-MV(1)
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