Hi, Dandan I have seen an email named “ [edk2] [PATCH v2 8/8] ShellPkg/Dp: Updated to dump perf log based on FPDT table “ in mail-archive ” and I know there is an update of Dp.
But I feel uncertain that: - // Determine in which direction the performance counter counts. - TimerInfo.CountUp = (BOOLEAN) (TimerInfo.EndCount >= TimerInfo.StartCount); + TimerInfo.StartCount = 0; + TimerInfo.EndCount = 0xFFFF; + TimerInfo.CountUp = TRUE; So it looks like we would not use timer count down feature , does it mean we should use count up timer such as TSC or ACPI Timer? Maybe is there any other cause? I am looking forward your reply! Thanks! -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#58216): https://edk2.groups.io/g/devel/message/58216 Mute This Topic: https://groups.io/mt/30910590/21656 Group Owner: [email protected] Unsubscribe: https://edk2.groups.io/g/devel/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
