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Re: [Qemu-devel] [PATCH v2 0/6] Reduce lock contention on TCG hot-path


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v2 0/6] Reduce lock contention on TCG hot-path
Date: Thu, 7 Jul 2016 18:13:19 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1


On 07/07/2016 18:04, Emilio G. Cota wrote:
>> > I think the first 3 patches are ready to take if the TCG maintainers
>> > want to:
>> > 
>> >     tcg: Ensure safe tb_jmp_cache lookup out of 'tb_lock'
>> >     tcg: set up tb->page_addr before insertion
>> >     tcg: cpu-exec: remove tb_lock from the hot-path
> I think it would be simpler to use tb_lock_recursive and
> tb_lock_reset, as pointed out in v1 of this series.

I agree, this series is doing a lot more restructuring than necessary.

Paolo



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