From: Oliver Upton <oliver.upton@linux.dev>
To: Sean Christopherson <seanjc@google.com>
Cc: "Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
kvm@vger.kernel.org, maz@kernel.org,
linux-kernel@vger.kernel.org, zhenyzha@redhat.com,
shan.gavin@gmail.com, kvmarm@lists.linux.dev,
pbonzini@redhat.com, shuah@kernel.org,
kvmarm@lists.cs.columbia.edu, ajones@ventanamicro.com
Subject: Re: [PATCH 5/6] KVM: selftests: memslot_perf_test: Consolidate memory sizes
Date: Tue, 18 Oct 2022 10:47:20 +0300 [thread overview]
Message-ID: <Y05aCJH+BBo+Y+nh@google.com> (raw)
In-Reply-To: <Y03ScGUUCA1KwlLF@google.com>
On Mon, Oct 17, 2022 at 10:08:48PM +0000, Sean Christopherson wrote:
> On Mon, Oct 17, 2022, Maciej S. Szmigiero wrote:
> > > +#define MEM_EXTRA_SIZE 0x10000
> >
> > Also, an expression like "(64 << 10)" is more readable than a "1"
> > with a tail of zeroes (it's easy to add one zero too many or be one
> > zero short).
>
> +1 to not open coding raw numbers.
>
> I think it's high time KVM selftests add #defines for the common sizes, e.g. SIZE_4KB,
> 16KB, 64K, 2MB, 1GB, etc...
>
> Alternatively (or in addition), just #define 1KB, 1MB, 1GB, and 1TB, and then do
> math off of those.
I mean I love boilerplate as much as the next guy, but we can just use
tools/include/linux/sizes.h
--
Thanks,
Oliver
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WARNING: multiple messages have this Message-ID (diff)
From: Oliver Upton <oliver.upton@linux.dev>
To: Sean Christopherson <seanjc@google.com>
Cc: "Maciej S. Szmigiero" <mail@maciej.szmigiero.name>,
Gavin Shan <gshan@redhat.com>,
kvmarm@lists.cs.columbia.edu, kvmarm@lists.linux.dev,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
ajones@ventanamicro.com, pbonzini@redhat.com, maz@kernel.org,
shuah@kernel.org, peterx@redhat.com, ricarkol@google.com,
zhenyzha@redhat.com, shan.gavin@gmail.com
Subject: Re: [PATCH 5/6] KVM: selftests: memslot_perf_test: Consolidate memory sizes
Date: Tue, 18 Oct 2022 10:47:20 +0300 [thread overview]
Message-ID: <Y05aCJH+BBo+Y+nh@google.com> (raw)
Message-ID: <20221018074720.iO-7XraHdcbbIzbTiqh5iSjEXf49pBNSVylRV5_6-PA@z> (raw)
In-Reply-To: <Y03ScGUUCA1KwlLF@google.com>
On Mon, Oct 17, 2022 at 10:08:48PM +0000, Sean Christopherson wrote:
> On Mon, Oct 17, 2022, Maciej S. Szmigiero wrote:
> > > +#define MEM_EXTRA_SIZE 0x10000
> >
> > Also, an expression like "(64 << 10)" is more readable than a "1"
> > with a tail of zeroes (it's easy to add one zero too many or be one
> > zero short).
>
> +1 to not open coding raw numbers.
>
> I think it's high time KVM selftests add #defines for the common sizes, e.g. SIZE_4KB,
> 16KB, 64K, 2MB, 1GB, etc...
>
> Alternatively (or in addition), just #define 1KB, 1MB, 1GB, and 1TB, and then do
> math off of those.
I mean I love boilerplate as much as the next guy, but we can just use
tools/include/linux/sizes.h
--
Thanks,
Oliver
next prev parent reply other threads:[~2022-10-18 7:47 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-14 7:19 [PATCH 0/6] KVM: selftests: memslot_perf_test: aarch64 cleanup/fixes Gavin Shan
2022-10-14 7:19 ` Gavin Shan
2022-10-14 7:19 ` [PATCH 1/6] KVM: selftests: memslot_perf_test: Use data->nslots in prepare_vm() Gavin Shan
2022-10-14 7:19 ` Gavin Shan
2022-10-14 7:19 ` [PATCH 2/6] KVM: selftests: memslot_perf_test: Consolidate loop conditions " Gavin Shan
2022-10-14 7:19 ` Gavin Shan
2022-10-14 7:19 ` [PATCH 3/6] KVM: selftests: memslot_perf_test: Probe memory slots for once Gavin Shan
2022-10-14 7:19 ` Gavin Shan
2022-10-17 17:34 ` Maciej S. Szmigiero
2022-10-17 17:34 ` Maciej S. Szmigiero
2022-10-17 22:18 ` Gavin Shan
2022-10-17 22:18 ` Gavin Shan
2022-10-14 7:19 ` [PATCH 4/6] KVM: selftests: memslot_perf_test: Support variable guest page size Gavin Shan
2022-10-14 7:19 ` Gavin Shan
2022-10-17 21:31 ` Maciej S. Szmigiero
2022-10-17 21:31 ` Maciej S. Szmigiero
2022-10-18 0:46 ` Gavin Shan
2022-10-18 0:46 ` Gavin Shan
2022-10-18 0:51 ` Gavin Shan
2022-10-18 0:51 ` Gavin Shan
2022-10-18 15:56 ` Maciej S. Szmigiero
2022-10-18 15:56 ` Maciej S. Szmigiero
2022-10-19 0:26 ` Gavin Shan
2022-10-19 0:26 ` Gavin Shan
2022-10-19 20:18 ` Maciej S. Szmigiero
2022-10-19 20:18 ` Maciej S. Szmigiero
2022-10-20 7:19 ` Gavin Shan
2022-10-20 7:19 ` Gavin Shan
2022-10-14 7:19 ` [PATCH 5/6] KVM: selftests: memslot_perf_test: Consolidate memory sizes Gavin Shan
2022-10-14 7:19 ` Gavin Shan
2022-10-17 21:36 ` Maciej S. Szmigiero
2022-10-17 21:36 ` Maciej S. Szmigiero
2022-10-17 22:08 ` Sean Christopherson
2022-10-17 22:08 ` Sean Christopherson
2022-10-17 22:51 ` Gavin Shan
2022-10-17 22:51 ` Gavin Shan
2022-10-17 22:56 ` Maciej S. Szmigiero
2022-10-17 22:56 ` Maciej S. Szmigiero
2022-10-17 23:10 ` Gavin Shan
2022-10-17 23:10 ` Gavin Shan
2022-10-17 23:32 ` Sean Christopherson
2022-10-17 23:32 ` Sean Christopherson
2022-10-17 23:39 ` Gavin Shan
2022-10-17 23:39 ` Gavin Shan
2022-10-18 7:47 ` Oliver Upton [this message]
2022-10-18 7:47 ` Oliver Upton
2022-10-18 8:48 ` Gavin Shan
2022-10-18 8:48 ` Gavin Shan
2022-10-18 1:13 ` Gavin Shan
2022-10-18 1:13 ` Gavin Shan
2022-10-14 7:19 ` [PATCH 6/6] KVM: selftests: memslot_perf_test: Report optimal memory slots Gavin Shan
2022-10-14 7:19 ` Gavin Shan
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