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Message-ID: <2aee5f75-836e-4a47-a29c-b272150227a8@intel.com>
Date: Thu, 4 Jan 2024 11:27:07 -0800
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Subject: Re: [PATCH v6 09/12] x86/sgx: Restructure top-level EPC reclaim
 function
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To: Haitao Huang <haitao.huang@linux.intel.com>,
 "Mehta, Sohil" <sohil.mehta@intel.com>, "jarkko@kernel.org"
 <jarkko@kernel.org>, "x86@kernel.org" <x86@kernel.org>,
 "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
 "cgroups@vger.kernel.org" <cgroups@vger.kernel.org>,
 "hpa@zytor.com" <hpa@zytor.com>, "mingo@redhat.com" <mingo@redhat.com>,
 "tj@kernel.org" <tj@kernel.org>, "mkoutny@suse.com" <mkoutny@suse.com>,
 "tglx@linutronix.de" <tglx@linutronix.de>,
 "linux-sgx@vger.kernel.org" <linux-sgx@vger.kernel.org>,
 "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
 "bp@alien8.de" <bp@alien8.de>, "Huang, Kai" <kai.huang@intel.com>
Cc: "mikko.ylinen@linux.intel.com" <mikko.ylinen@linux.intel.com>,
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 "kristen@linux.intel.com" <kristen@linux.intel.com>,
 "anakrish@microsoft.com" <anakrish@microsoft.com>,
 "sean.j.christopherson@intel.com" <sean.j.christopherson@intel.com>,
 "Li, Zhiquan1" <zhiquan1.li@intel.com>,
 "yangjie@microsoft.com" <yangjie@microsoft.com>
References: <20231030182013.40086-1-haitao.huang@linux.intel.com>
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 <op.2f523elowjvjmi@hhuan26-mobl.amr.corp.intel.com>
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From: Dave Hansen <dave.hansen@intel.com>
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In-Reply-To: <op.2g1d81fqwjvjmi@hhuan26-mobl.amr.corp.intel.com>
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On 1/4/24 11:11, Haitao Huang wrote:
> If those are OK with users and also make it acceptable for merge
> quickly, I'm happy to do that ????

How about we put some actual numbers behind this?  How much complexity
are we talking about here?  What's the diffstat for the utterly
bare-bones implementation and what does it cost on top of that to do the
per-cgroup reclaim?