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devices: virtio: scsi: Change the queue size.

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Currently the queue size of virtio-scsi device is set to 256, but the
FIO performance result improved on a larger size 1024. This commit
changes the queue size to 1024 given the performance increase.

BUG=b:300042376
TEST=tools/presubmit

Change-Id: Iad29541436e9a0c2f9acd2587e3bb9ae5e4110cf
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/5067394
Reviewed-by: Takaya Saeki <takayas@chromium.org>
Commit-Queue: Joe Hattori <hattorij@google.com>
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
This commit is contained in:
Joe Hattori 2023-11-29 06:55:59 +00:00 committed by crosvm LUCI
parent 9d054ab7b1
commit e68276c609
1 changed files with 2 additions and 2 deletions
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4
devices/src/virtio/scsi/device.rs
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@ -86,10 +86,10 @@ const DEFAULT_MAX_TARGET: u16 = 255;
// Max lun should be less than or equal to 16383
const DEFAULT_MAX_LUN: u32 = 16383;
const DEFAULT_QUEUE_SIZE: u16 = 256;
const DEFAULT_QUEUE_SIZE: u16 = 1024;
// The maximum number of linked commands.
const MAX_CMD_PER_LUN: u32 = 128;
const MAX_CMD_PER_LUN: u32 = 1024;
// We do not set a limit on the transfer size.
const MAX_SECTORS: u32 = u32::MAX;