From 49a086299e047b18280457b654790ef4a2e5abfa Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Wed, 18 Feb 2015 00:58:35 +0100 Subject: Revert "rename open_issues.mdwn to service_solahart_jakarta_selatan__082122541663.mdwn" This reverts commit 95878586ec7611791f4001a4ee17abf943fae3c1. --- open_issues/metadata_caching.mdwn | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 open_issues/metadata_caching.mdwn (limited to 'open_issues/metadata_caching.mdwn') diff --git a/open_issues/metadata_caching.mdwn b/open_issues/metadata_caching.mdwn new file mode 100644 index 00000000..f7f4cb53 --- /dev/null +++ b/open_issues/metadata_caching.mdwn @@ -0,0 +1,31 @@ +[[!meta copyright="Copyright © 2011, 2012 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!tag open_issue_gnumach open_issue_hurd]] + +[[!toc]] + + +# IRC, freenode, #hurd, 2012-07-08 + + youpi: there is still quite a lot of I/O even for cached objects + youpi: i strongly suspect these are for the metadata + i.e. we don't have a "buffer cache", only a file cache + (gnu is really not unix lol) + doesn't ext2fs cache these? + (as long as the corresponding object is cached + ) + i didn't look too much, but if it does, it does a bad job + i would guess it does, but possibly only writethrough + iirc it does writeback + there's a sorta "node needs written" flag somewhere iirc + but that's for the files, not the metadata + I mean the metadata of the node + then i have no idea what happens -- cgit v1.2.3