From: Peng Zhang <zhangpeng.00@bytedance.com>
To: Robin Murphy <robin.murphy@arm.com>, joro@8bytes.org, will@kernel.org
Cc: wangjie125@huawei.com, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, haifeng.zhao@linux.intel.com,
john.garry@huawei.com
Subject: Re: [RESEND PATCH v3] iommu/iova: Optimize alloc_iova with rbtree_augmented
Date: Tue, 8 Nov 2022 11:43:56 +0800 [thread overview]
Message-ID: <0689cf4d-adaa-c783-98e8-ffbe73291ae1@bytedance.com> (raw)
In-Reply-To: <4a1d000e-e051-5972-bacc-d785ceeed879@arm.com>
> https://lore.kernel.org/linux-iommu/2b0ca6254dd0102bf559b2a73e9b51da089afbe3.1663764627.git.robin.murphy@arm.com/
I don't think this method solves the problem, because sometimes it's
just that the allocation is very slow, it's not that it can't be allocated.
This is a test of the performance improvement of the network card by
this patch:
https://lore.kernel.org/lkml/42909903-5b6c-efe8-9ed3-3ac012f1a421@huawei.com/
At least this optimization makes sense.
The only downside of this optimization is that it is more complex, if
you think it is difficult to maintain it, I can help maintain it.
Thanks,
Peng.
prev parent reply other threads:[~2022-11-08 3:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-22 18:31 Peng Zhang
2022-09-22 18:52 ` Peng Zhang
2022-09-22 19:19 ` Robin Murphy
2022-11-08 3:43 ` Peng Zhang [this message]
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