Home » Mailing list archives » linux-kernel » 2008 » July » 12

Re: [SUGGESTION]: drop virtual merge accounting in I/O requests

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Andi Kleen
Subject: Re: [SUGGESTION]: drop virtual merge accounting in I/O requests
Date: Saturday, July 12, 2008 - 5:30 am

Mikulas Patocka <mpatocka@redhat.com> writes:


x86-64 (and powerpc) solved this a long time ago by only doing
opportunistic merging: as in don't announce to the block layer
that you can merge, but try to merge anyways. This way SG lists
are not necessarily filled completely, but it's still better
than overflowing them in some rare cases.

-Andi
--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
[SUGGESTION]: drop virtual merge accounting in I/O requests, Mikulas Patocka, (Thu Jul 10, 2:56 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Julian Calaby, (Thu Jul 10, 3:59 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Thu Jul 10, 4:57 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Thu Jul 10, 11:20 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Fri Jul 11, 3:52 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Fri Jul 11, 4:15 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Fri Jul 11, 12:41 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Fri Jul 11, 1:22 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Andi Kleen, (Sat Jul 12, 5:30 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Sun Jul 13, 6:34 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Andi Kleen, (Sun Jul 13, 6:50 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Sun Jul 13, 12:46 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Andi Kleen, (Sun Jul 13, 1:13 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Sun Jul 13, 4:53 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Sun Jul 13, 5:41 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Sun Jul 13, 5:48 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Sun Jul 13, 7:19 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Sun Jul 13, 8:20 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Mon Jul 14, 5:16 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Mon Jul 14, 5:28 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Mon Jul 14, 7:03 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Mon Jul 14, 10:45 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Mon Jul 14, 2:26 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Mon Jul 14, 2:37 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Mon Jul 14, 4:16 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Mon Jul 14, 6:31 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Mon Jul 14, 7:40 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Mon Jul 14, 7:40 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Tue Jul 15, 5:09 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Andi Kleen, (Tue Jul 15, 5:15 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Tue Jul 15, 5:19 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Tue Jul 15, 6:16 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Andi Kleen, (Tue Jul 15, 7:06 am)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Tue Jul 15, 3:32 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Tue Jul 15, 3:37 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., Mikulas Patocka, (Tue Jul 15, 3:59 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., David Miller, (Tue Jul 15, 8:10 pm)
Re: [SUGGESTION]: drop virtual merge accounting in I/O req ..., FUJITA Tomonori, (Tue Jul 15, 9:38 pm)