From: Arjan van de Ven <arjan@linux.intel.com>
To: Alex Shi <alex.shi@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Andrew Lutomirski <luto@mit.edu>, Jan Beulich <JBeulich@suse.com>,
borislav.petkov@amd.com, arnd@arndb.de, akinobu.mita@gmail.com,
eric.dumazet@gmail.com, fweisbec@gmail.com, rostedt@goodmis.org,
hughd@google.com, jeremy@goop.org, len.brown@intel.com,
tony.luck@intel.com, yongjie.ren@intel.com,
kamezawa.hiroyu@jp.fujitsu.com, seto.hidetoshi@jp.fujitsu.com,
penberg@kernel.org, yinghai@kernel.org, tglx@linutronix.de,
akpm@linux-foundation.org, ak@linux.intel.com, avi@redhat.com,
dhowells@redhat.com, mingo@redhat.com, riel@redhat.com,
cpw@sgi.com, steiner@sgi.com, linux-kernel@vger.kernel.org,
viro@zeniv.linux.org.uk, hpa@zytor.com,
"asit.k.mallick@intel.com" <asit.k.mallick@intel.com>
Subject: Re: [PATCH v7 8/8] x86/tlb: just do tlb flush on one of siblings of SMT
Date: Thu, 24 May 2012 17:46:40 -0700 [thread overview]
Message-ID: <4FBED670.8030002@linux.intel.com> (raw)
In-Reply-To: <4FBED22F.1030607@intel.com>
On
> As my limited knowledge, rewrite cr3 or invlpg will flush all levels TLB
> entries in CPU. So, what's you mean of 'HAVE to flush all'?
neither of these will flush global tlb entries.
(see the "global" bit in the page table format)
next prev parent reply other threads:[~2012-05-25 0:46 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-23 14:15 [PATCH v7 0/8] x86 tlb optimisations Alex Shi
2012-05-23 14:15 ` [PATCH v7 1/8] x86/tlb_info: get last level TLB entry number of CPU Alex Shi
2012-05-23 14:15 ` [PATCH v7 2/8] x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range Alex Shi
2012-05-23 14:51 ` Jan Beulich
2012-05-24 6:41 ` Alex Shi
2012-05-24 8:12 ` Jan Beulich
2012-05-24 8:55 ` Alex Shi
2012-05-24 9:44 ` Jan Beulich
2012-05-24 14:36 ` Alex Shi
2012-05-25 2:43 ` Alex Shi
2012-05-23 14:15 ` [PATCH v7 3/8] x86/tlb: fall back to flush all when meet a THP large page Alex Shi
2012-05-23 14:15 ` [PATCH v7 4/8] x86/tlb: add tlb_flushall_shift for specific CPU Alex Shi
2012-05-23 14:15 ` [PATCH v7 5/8] x86/tlb: enable tlb flush range support for generic mmu and x86 Alex Shi
2012-05-23 14:15 ` [PATCH v7 6/8] x86/tlb: add tlb_flushall_shift knob into debugfs Alex Shi
2012-05-23 14:15 ` [PATCH v7 7/8] x86/tlb: replace INVALIDATE_TLB_VECTOR by CALL_FUNCTION_VECTOR Alex Shi
2012-05-23 14:15 ` [PATCH v7 8/8] x86/tlb: just do tlb flush on one of siblings of SMT Alex Shi
2012-05-23 15:05 ` Jan Beulich
2012-05-23 17:09 ` Peter Zijlstra
2012-05-23 17:15 ` Peter Zijlstra
2012-05-24 1:46 ` Andrew Lutomirski
2012-05-24 5:12 ` Alex Shi
2012-05-24 6:04 ` Borislav Petkov
2012-05-24 7:40 ` Peter Zijlstra
2012-05-24 13:19 ` Andrew Lutomirski
2012-05-24 13:23 ` Peter Zijlstra
2012-05-24 13:39 ` Arjan van de Ven
2012-05-24 13:54 ` Alex Shi
2012-05-24 14:18 ` Arjan van de Ven
2012-05-24 14:32 ` Alex Shi
2012-05-24 15:03 ` H. Peter Anvin
2012-05-25 0:24 ` Alex Shi
2012-05-24 16:08 ` Arjan van de Ven
2012-05-25 0:28 ` Alex Shi
2012-05-25 0:46 ` Arjan van de Ven [this message]
2012-05-24 8:32 ` Alex Shi
2012-05-24 8:42 ` Peter Zijlstra
2012-05-24 8:48 ` Alex Shi
2012-05-24 11:35 ` Rusty Russell
2012-05-24 14:03 ` Alex Shi
2012-05-24 9:27 ` Alex Shi
2012-05-24 9:42 ` Peter Zijlstra
2012-05-24 9:46 ` Jan Beulich
2012-05-24 14:06 ` Alex Shi
2012-05-24 8:43 ` Peter Zijlstra
2012-05-24 8:48 ` Jan Beulich
2012-05-24 9:02 ` Alex Shi
2012-05-24 9:45 ` Jan Beulich
2012-05-24 15:04 ` H. Peter Anvin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4FBED670.8030002@linux.intel.com \
--to=arjan@linux.intel.com \
--cc=JBeulich@suse.com \
--cc=ak@linux.intel.com \
--cc=akinobu.mita@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=alex.shi@intel.com \
--cc=arnd@arndb.de \
--cc=asit.k.mallick@intel.com \
--cc=avi@redhat.com \
--cc=borislav.petkov@amd.com \
--cc=cpw@sgi.com \
--cc=dhowells@redhat.com \
--cc=eric.dumazet@gmail.com \
--cc=fweisbec@gmail.com \
--cc=hpa@zytor.com \
--cc=hughd@google.com \
--cc=jeremy@goop.org \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=len.brown@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@mit.edu \
--cc=mingo@redhat.com \
--cc=penberg@kernel.org \
--cc=peterz@infradead.org \
--cc=riel@redhat.com \
--cc=rostedt@goodmis.org \
--cc=seto.hidetoshi@jp.fujitsu.com \
--cc=steiner@sgi.com \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
--cc=viro@zeniv.linux.org.uk \
--cc=yinghai@kernel.org \
--cc=yongjie.ren@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox