From: Tejun Heo <tj@kernel.org>
To: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>,
akpm@linux-foundation.org, willy@infradead.org, jack@suse.cz,
bfoster@redhat.com, dsterba@suse.com, mjguzik@gmail.com,
dhowells@redhat.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v2 0/6] Improve visibility of writeback
Date: Thu, 28 Mar 2024 10:46:33 -1000 [thread overview]
Message-ID: <ZgXXKaZlmOWC-3mn@slm.duckdns.org> (raw)
In-Reply-To: <qv3vv6355aw5fkzw5yvuwlnyceypcsfl5kkcrvlipxwfl3nuyg@7cqwaqpxn64t>
Hello, Kent.
On Thu, Mar 28, 2024 at 04:22:13PM -0400, Kent Overstreet wrote:
> Most users are never going to touch tracing, let alone BPF; that's too
> much setup. But I can and do regularly tell users "check this, this and
> this" and debug things on that basis without ever touching their
> machine.
I think this is where the disconnect is. It's not difficult to set up at
all. Nowadays, in most distros, it comes down to something like run "pacman
-S bcc" and then run "/usr/share/bcc/tools/biolatpcts" with these params or
run this script I'm attaching. It is a signficant boost when debugging many
different kernel issues. I strongly suggest giving it a try and getting used
to it rather than resisting it.
Thanks.
--
tejun
next prev parent reply other threads:[~2024-03-28 20:46 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-27 15:57 [PATCH v2 0/6] Improve visibility of writeback Kemeng Shi
2024-03-27 15:57 ` [PATCH v2 1/6] writeback: protect race between bdi release and bdi_debug_stats_show Kemeng Shi
2024-03-28 17:53 ` Brian Foster
2024-04-03 2:16 ` Kemeng Shi
2024-03-27 15:57 ` [PATCH v2 2/6] writeback: collect stats of all wb of bdi in bdi_debug_stats_show Kemeng Shi
2024-03-29 13:04 ` Brian Foster
2024-04-03 7:49 ` Kemeng Shi
2024-03-27 15:57 ` [PATCH v2 3/6] writeback: support retrieving per group debug writeback stats of bdi Kemeng Shi
2024-03-29 13:10 ` Brian Foster
2024-04-03 8:49 ` Kemeng Shi
2024-04-03 15:04 ` Brian Foster
2024-04-04 9:07 ` Jan Kara
2024-04-07 3:13 ` Kemeng Shi
2024-04-07 2:48 ` Kemeng Shi
2024-03-27 15:57 ` [PATCH v2 4/6] writeback: add wb_monitor.py script to monitor writeback info on bdi Kemeng Shi
2024-03-27 15:57 ` [PATCH v2 5/6] writeback: rename nr_reclaimable to nr_dirty in balance_dirty_pages Kemeng Shi
2024-03-27 15:57 ` [PATCH v2 6/6] writeback: define GDTC_INIT_NO_WB to null Kemeng Shi
2024-03-27 17:40 ` [PATCH v2 0/6] Improve visibility of writeback Andrew Morton
2024-03-28 1:59 ` Kemeng Shi
2024-03-28 8:23 ` Kemeng Shi
2024-03-28 19:15 ` Kent Overstreet
2024-03-28 19:23 ` Andrew Morton
2024-03-28 19:36 ` Kent Overstreet
2024-03-28 19:24 ` Kent Overstreet
2024-03-28 19:31 ` Tejun Heo
2024-03-28 19:40 ` Kent Overstreet
2024-03-28 19:46 ` Tejun Heo
2024-03-28 19:55 ` Kent Overstreet
2024-03-28 20:13 ` Tejun Heo
2024-03-28 20:22 ` Kent Overstreet
2024-03-28 20:46 ` Tejun Heo [this message]
2024-03-28 20:53 ` Kent Overstreet
2024-04-03 16:27 ` Jan Kara
2024-04-03 18:44 ` Tejun Heo
2024-04-03 19:06 ` Kent Overstreet
2024-04-03 19:21 ` Tejun Heo
2024-04-03 22:24 ` Kent Overstreet
2024-04-03 6:56 ` Kemeng Shi
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