Ankur: Seemly, the patch is missing in this mail. Thanks Liming > -----邮件原件----- > 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Ankur Arora > 发送时间: 2021年3月19日 2:45 > 收件人: devel@edk2.groups.io > 抄送: Ankur Arora <ankur.a.ar...@oracle.com>; Liming Gao > <gaolim...@byosoft.com.cn>; Michael D Kinney > <michael.d.kin...@intel.com>; Laszlo Ersek <ler...@redhat.com> > 主题: [edk2-devel] [PATCH v2] MdePkg: use CpuPause() in CpuDeadLoop() > > CpuPause() might allow the CPU to go into a lower power state > state while we spin. > > On X86, CpuPause() executes a PAUSE instruction which the Intel > and AMD specs describe as follows: > > Intel: > "PAUSE: An additional function of the PAUSE instruction is to reduce > the power consumed by a processor while executing a spin loop. A > processor can execute a spin-wait loop extremely quickly, causing the > processor to consume a lot of power while it waits for the resource it > is spinning on to become available. Inserting a pause instruction in a > spin-wait loop greatly reduces the processorb
-=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#73026): https://edk2.groups.io/g/devel/message/73026 Mute This Topic: https://groups.io/mt/81445311/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
