From: Stefan Hajnoczi <stefanha@redhat.com>
To: Mike Christie <michael.christie@oracle.com>
Cc: jasowang@redhat.com, mst@redhat.com, sgarzare@redhat.com,
pbonzini@redhat.com, target-devel@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: Re: [PATCH v2 0/8] vhost-scsi: Memory reduction patches
Date: Wed, 4 Dec 2024 15:47:23 -0500 [thread overview]
Message-ID: <20241204204723.GA48585@fedora> (raw)
In-Reply-To: <20241203191705.19431-1-michael.christie@oracle.com>
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On Tue, Dec 03, 2024 at 01:15:07PM -0600, Mike Christie wrote:
> The following patches were made over Linus's tree and also apply over
> the mst vhost branch. They reduce the memory use for vhost-scsi.
>
> For a simple device with 1 queue and 128 cmds we use around 25 MB. These
> patches allow us to reduce that to 8.2 MB when supporting up to 128 8 MB
> IOs (the current passthrough max size).
>
> For a more complex device with 16 queues we use around 2.5 GB. These
> patches allow us to reduce that to 77.1 MB when supporting 1024 8 MB IOs.
>
> v2
> - Rebase against current trees/branches.
> - Fix email threading.
>
Nice improvement! I haven't reviewed the patches in detail but this
sounds good.
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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prev parent reply other threads:[~2024-12-04 20:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-03 19:15 [PATCH v2 0/8] vhost-scsi: Memory reduction patches Mike Christie
2024-12-03 19:15 ` [PATCH v2 1/8] vhost-scsi: Reduce mem use by moving upages to per queue Mike Christie
2024-12-03 19:15 ` [PATCH v2 2/8] vhost-scsi: Allocate T10 PI structs only when enabled Mike Christie
2024-12-03 19:15 ` [PATCH v2 3/8] vhost-scsi: Add better resource allocation failure handling Mike Christie
2025-02-24 22:53 ` dongli.zhang
2024-12-03 19:15 ` [PATCH v2 4/8] vhost-scsi: Return queue full for page alloc failures during copy Mike Christie
2024-12-03 19:15 ` [PATCH v2 5/8] vhost-scsi: Dynamically allocate scatterlists Mike Christie
2024-12-03 19:15 ` [PATCH v2 6/8] vhost-scsi: Stop duplicating se_cmd fields Mike Christie
2024-12-03 19:15 ` [PATCH v2 7/8] vhost-scsi: Allocate iov_iter used for unaligned copies when needed Mike Christie
2024-12-03 19:15 ` [PATCH v2 8/8] vhost-scsi: Reduce response iov mem use Mike Christie
2024-12-04 20:47 ` Stefan Hajnoczi [this message]
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