From: Vivek Goyal <vgoyal@redhat.com>
To: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>
Cc: kexec@lists.infradead.org
Subject: Re: [RFC PATCH v2 0/10] makedumpfile: cyclic processing to keep memory consumption.
Date: Mon, 2 Jul 2012 08:39:05 -0400 [thread overview]
Message-ID: <20120702123905.GG24929@redhat.com> (raw)
In-Reply-To: <20120629111320.694ec85b.kumagai-atsushi@mxc.nes.nec.co.jp>
On Fri, Jun 29, 2012 at 11:13:20AM +0900, Atsushi Kumagai wrote:
> Hello,
>
> I improved prototype of cyclic processing as version 2.
> If there is no objection to basic idea, I want to consider the things
> related to performance as next step. (Concretely, buffer size and the patch set
> HATAYAMA-san sent a short time ago.)
>
Hi Atushi san,
Good to see this work making progress. I have few queries.
- Do you have some numbers for bigger machines like 1TB or higher memory.
I am curious to know how bad is the time penalty.
- Will this work with option -F (flattned format). Often people save
filtered dump over ssh and we need to make sure it does work with -F
option too.
> > Version 1:
>
> http://lists.infradead.org/pipermail/kexec/2012-May/006363.html
- I have few queries about the diagram in the link above.
- What is 1st cycle, 2nd cycle and 3rd cycle. Are we cycling thorough
all the pages 3 times for everything?
- What is 1st bitmap and 2nd bitmap and page_header? And why 3 cycles for
each.
- And why 3 cycles for page_data.
Thanks
Vivek
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next prev parent reply other threads:[~2012-07-02 12:39 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-29 2:13 [RFC PATCH v2 0/10] makedumpfile: cyclic processing to keep memory consumption Atsushi Kumagai
2012-06-29 2:16 ` [RFC PATCH v2 1/10] Add flag to enable cyclic processing Atsushi Kumagai
2012-06-29 2:17 ` [RFC PATCH v2 2/10] Prepare partial bitmap for " Atsushi Kumagai
2012-06-29 2:17 ` [RFC PATCH v2 3/10] Change the function related to excluding unnecessary pages Atsushi Kumagai
2012-06-29 2:18 ` [RFC PATCH v2 4/10] Add function to update target region Atsushi Kumagai
2012-06-29 2:19 ` [RFC PATCH v2 5/10] Add function to get num_dumpable for cyclic processing Atsushi Kumagai
2012-06-29 2:21 ` [RFC PATCH v2 6/10] Implement the main routine of cyclic processing for kdump-compressed format Atsushi Kumagai
2012-06-29 2:22 ` [RFC PATCH v2 7/10] Add function to get number of PT_LOAD for cyclic processing Atsushi Kumagai
2012-06-29 2:23 ` [RFC PATCH v2 8/10] Implement the main routine of cyclic processing for ELF format Atsushi Kumagai
2012-06-29 2:24 ` [RFC PATCH v2 9/10] Enabling --split option with cyclic processing Atsushi Kumagai
2012-06-29 2:25 ` [RFC PATCH v2 10/10] Change num_dumped value to global for debug messages Atsushi Kumagai
2012-07-02 12:39 ` Vivek Goyal [this message]
2012-07-04 5:54 ` [RFC PATCH v2 0/10] makedumpfile: cyclic processing to keep memory consumption Atsushi Kumagai
2012-07-04 8:52 ` HATAYAMA Daisuke
2012-07-11 5:23 ` HATAYAMA Daisuke
2012-07-13 0:36 ` Atsushi Kumagai
2012-07-13 5:18 ` HATAYAMA Daisuke
2012-07-13 8:10 ` Atsushi Kumagai
2012-07-18 0:57 ` HATAYAMA Daisuke
2012-08-06 20:47 ` Vivek Goyal
2012-08-07 7:31 ` HATAYAMA Daisuke
2012-08-10 8:39 ` HATAYAMA Daisuke
2012-08-10 14:36 ` Vivek Goyal
2012-08-14 11:55 ` HATAYAMA Daisuke
2012-08-15 6:27 ` Atsushi Kumagai
2012-08-15 13:31 ` Vivek Goyal
2012-08-20 0:12 ` HATAYAMA Daisuke
2012-08-29 2:50 ` HATAYAMA Daisuke
2012-08-29 12:35 ` Vivek Goyal
2012-08-30 0:55 ` HATAYAMA Daisuke
2012-08-30 6:29 ` Atsushi Kumagai
2012-08-08 5:14 ` Atsushi Kumagai
2012-08-08 13:25 ` Vivek Goyal
2012-08-09 6:44 ` Atsushi Kumagai
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