From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 1/3] mm: page_alloc: Reduce object size by neatening printks
Date: Thu, 16 Mar 2017 20:30:56 +0900 [thread overview]
Message-ID: <20170316113056.GG464@jagdpanzerIV.localdomain> (raw)
In-Reply-To: <880b3172b67d806082284d80945e4a231a5574bb.1489628459.git.joe@perches.com>
On (03/15/17 18:43), Joe Perches wrote:
[..]
> - printk("active_anon:%lu inactive_anon:%lu isolated_anon:%lu\n"
> - " active_file:%lu inactive_file:%lu isolated_file:%lu\n"
> - " unevictable:%lu dirty:%lu writeback:%lu unstable:%lu\n"
> - " slab_reclaimable:%lu slab_unreclaimable:%lu\n"
> - " mapped:%lu shmem:%lu pagetables:%lu bounce:%lu\n"
> - " free:%lu free_pcp:%lu free_cma:%lu\n",
> - global_node_page_state(NR_ACTIVE_ANON),
> - global_node_page_state(NR_INACTIVE_ANON),
> - global_node_page_state(NR_ISOLATED_ANON),
> - global_node_page_state(NR_ACTIVE_FILE),
> - global_node_page_state(NR_INACTIVE_FILE),
> - global_node_page_state(NR_ISOLATED_FILE),
> - global_node_page_state(NR_UNEVICTABLE),
> - global_node_page_state(NR_FILE_DIRTY),
> - global_node_page_state(NR_WRITEBACK),
> - global_node_page_state(NR_UNSTABLE_NFS),
> - global_page_state(NR_SLAB_RECLAIMABLE),
> - global_page_state(NR_SLAB_UNRECLAIMABLE),
> - global_node_page_state(NR_FILE_MAPPED),
> - global_node_page_state(NR_SHMEM),
> - global_page_state(NR_PAGETABLE),
> - global_page_state(NR_BOUNCE),
> - global_page_state(NR_FREE_PAGES),
> - free_pcp,
> - global_page_state(NR_FREE_CMA_PAGES));
> + printk("active_anon:%lu inactive_anon:%lu isolated_anon:%lu\n",
> + global_node_page_state(NR_ACTIVE_ANON),
> + global_node_page_state(NR_INACTIVE_ANON),
> + global_node_page_state(NR_ISOLATED_ANON));
> + printk("active_file:%lu inactive_file:%lu isolated_file:%lu\n",
> + global_node_page_state(NR_ACTIVE_FILE),
> + global_node_page_state(NR_INACTIVE_FILE),
> + global_node_page_state(NR_ISOLATED_FILE));
> + printk("unevictable:%lu dirty:%lu writeback:%lu unstable:%lu\n",
> + global_node_page_state(NR_UNEVICTABLE),
> + global_node_page_state(NR_FILE_DIRTY),
> + global_node_page_state(NR_WRITEBACK),
> + global_node_page_state(NR_UNSTABLE_NFS));
> + printk("slab_reclaimable:%lu slab_unreclaimable:%lu\n",
> + global_page_state(NR_SLAB_RECLAIMABLE),
> + global_page_state(NR_SLAB_UNRECLAIMABLE));
> + printk("mapped:%lu shmem:%lu pagetables:%lu bounce:%lu\n",
> + global_node_page_state(NR_FILE_MAPPED),
> + global_node_page_state(NR_SHMEM),
> + global_page_state(NR_PAGETABLE),
> + global_page_state(NR_BOUNCE));
> + printk("free:%lu free_pcp:%lu free_cma:%lu\n",
> + global_page_state(NR_FREE_PAGES),
> + free_pcp,
> + global_page_state(NR_FREE_CMA_PAGES));
a side note:
this can make it harder to read, in _the worst case_. one printk()
guaranteed that we would see a single line in the serial log/etc.
the sort of a problem with multiple printks is that printks coming
from other CPUs will split that "previously single" line.
just a notice. up to MM people to decide.
-ss
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-03-16 11:31 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-16 1:43 [PATCH 0/3] mm: page_alloc: Object code reductions and logging fix Joe Perches
2017-03-16 1:43 ` [PATCH 1/3] mm: page_alloc: Reduce object size by neatening printks Joe Perches
2017-03-16 10:56 ` Michal Hocko
2017-03-16 20:32 ` Joe Perches
2017-03-17 7:39 ` Michal Hocko
2017-03-16 11:30 ` Sergey Senozhatsky [this message]
2017-03-16 18:37 ` Joe Perches
2017-03-16 22:53 ` Andrew Morton
2017-03-17 1:56 ` Sergey Senozhatsky
2017-03-18 19:31 ` Joe Perches
2017-03-20 13:00 ` Petr Mladek
2017-03-16 1:43 ` [PATCH 2/3] mm: page_alloc: Fix misordered logging output, reduce code size Joe Perches
2017-03-16 10:57 ` Michal Hocko
2017-03-16 1:43 ` [PATCH 3/3] mm: page_alloc: Break up a long single-line printk Joe Perches
2017-03-16 10:58 ` Michal Hocko
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=20170316113056.GG464@jagdpanzerIV.localdomain \
--to=sergey.senozhatsky.work@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=joe@perches.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/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;
as well as URLs for NNTP newsgroup(s).