From: Nhat Pham <nphamcs@gmail.com>
To: "Sridhar, Kanchana P" <kanchana.p.sridhar@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"yosryahmed@google.com" <yosryahmed@google.com>,
"ryan.roberts@arm.com" <ryan.roberts@arm.com>,
"Huang, Ying" <ying.huang@intel.com>,
"21cnbao@gmail.com" <21cnbao@gmail.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"Zou, Nanhai" <nanhai.zou@intel.com>,
"Feghali, Wajdi K" <wajdi.k.feghali@intel.com>,
"Gopal, Vinodh" <vinodh.gopal@intel.com>
Subject: Re: [PATCH v4 0/4] mm: ZSWAP swap-out of mTHP folios
Date: Tue, 27 Aug 2024 08:30:06 -0700 [thread overview]
Message-ID: <CAKEwX=MPM8v6WZ3XUD11MkZceo7Y82C0pMTwLJuZX67Wo27WbA@mail.gmail.com> (raw)
In-Reply-To: <CAKEwX=ORuJabxQSehU5E0QNG=Gx6QkyTCb1vek3AOcQuvF54Xg@mail.gmail.com>
On Tue, Aug 27, 2024 at 8:23 AM Nhat Pham <nphamcs@gmail.com> wrote:
>
> On Mon, Aug 26, 2024 at 11:08 PM Sridhar, Kanchana P
> <kanchana.p.sridhar@intel.com> wrote:
> Yeah that's a bit unfair still. Wild idea, but what about we compare
> SSD without zswap (or SSD with zswap, but without this patch series so
> that mTHP are not zswapped) v.s zswap-on-zram (i.e with a backing
> swapfile on zram block device).
>
> It is stupid, I know. But let's take advantage of the fact that zram
> is not charged to cgroup, pretending that its memory foot print is
> empty?
>
> I don't know how zram works though, so my apologies if it's a stupid
> suggestion :)
Oh nvm, looks like that's what you're already doing.
That said, the lz4 column is soooo bad still, whereas the deflate-iaa
clearly shows improvement! This means it could be
compressor-dependent.
Can you try it with zstd?
next prev parent reply other threads:[~2024-08-27 15:30 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-19 2:16 Kanchana P Sridhar
2024-08-19 2:16 ` [PATCH v4 1/4] mm: zswap: zswap_is_folio_same_filled() takes an index in the folio Kanchana P Sridhar
2024-08-19 2:16 ` [PATCH v4 2/4] mm: zswap: zswap_store() extended to handle mTHP folios Kanchana P Sridhar
2024-08-20 20:03 ` Sridhar, Kanchana P
2024-08-19 2:16 ` [PATCH v4 3/4] mm: Add MTHP_STAT_ZSWPOUT to sysfs per-order mthp stats Kanchana P Sridhar
2024-08-19 2:16 ` [PATCH v4 4/4] mm: swap: Count successful mTHP ZSWAP stores in sysfs mTHP stats Kanchana P Sridhar
2024-08-19 3:16 ` [PATCH v4 0/4] mm: ZSWAP swap-out of mTHP folios Huang, Ying
2024-08-19 5:12 ` Sridhar, Kanchana P
2024-08-19 5:51 ` Huang, Ying
2024-08-20 3:00 ` Sridhar, Kanchana P
2024-08-20 21:13 ` Nhat Pham
2024-08-20 22:09 ` Sridhar, Kanchana P
2024-08-21 14:42 ` Nhat Pham
2024-08-21 19:07 ` Sridhar, Kanchana P
2024-08-24 6:21 ` Sridhar, Kanchana P
2024-08-26 14:12 ` Nhat Pham
2024-08-27 6:08 ` Sridhar, Kanchana P
2024-08-27 15:23 ` Nhat Pham
2024-08-27 15:30 ` Nhat Pham [this message]
2024-08-27 18:43 ` Sridhar, Kanchana P
2024-08-28 7:27 ` Sridhar, Kanchana P
2024-08-27 18:42 ` Sridhar, Kanchana P
2024-08-28 7:24 ` Sridhar, Kanchana P
2024-08-28 7:43 ` Yosry Ahmed
2024-08-28 18:50 ` Sridhar, Kanchana P
2024-08-28 22:34 ` Yosry Ahmed
2024-08-29 0:14 ` Sridhar, Kanchana P
2024-08-24 3:09 ` Yosry Ahmed
2024-08-24 6:24 ` Sridhar, Kanchana P
2024-08-27 14:55 ` Nhat Pham
2024-08-27 18:09 ` Sridhar, Kanchana P
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