The serial port output information as follow:
Stack:
[ 844.224232] Call Trace:
[ 844.225071] Leftover inexact backtrace:
[ 844.225072]
[ 844.225075] Code: 6c 24 10 48 83 c4 18 c3 90 41 54 49 89 f4 55 48 89 fd 53
48 89 cb 44 89 c1 f0 0f ba 2b 00 19 c0 85 c0 74 15 0f 1f 44 00 00 f3 90
[ 844.225098] 8b 03 a8 01 75 f7 eb e5 0f 1f 44 00 00 48 8b 03 a8 04 75 48
[ 872.224164] Stack:
[ 872.224183] Call Trace:
[ 872.224956] Leftover inexact backtrace:
[ 872.224957]
[ 872.224959] Code: 6c 24 10 48 83 c4 18 c3 90 41 54 49 89 f4 55 48 89 fd 53
48 89 cb 44 89 c1 f0 0f ba 2b 00 19 c0 85 c0 74 15 0f 1f 44 00 00 f3 90
[ 872.224982] 8b 03 a8 01 75 f7 eb e5 0f 1f 44 00 00 48 8b 03 a8 04 75 48
[ 879.688070] Stack:
[ 879.688070] Call Trace:
[ 879.688070] Inexact backtrace:
[ 879.688070]
[ 879.688070] <IRQ>
[ 879.688070] <EOI>
[ 879.688070] Code: cc 51 41 53 50 b8 17 00 00 00 0f 05 5b 59 c3 cc cc cc cc
cc cc cc cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 18 00 00 00 0f 05
[ 878.094333] Stack:
[ 878.094333] Call Trace:
[ 878.094333] Inexact backtrace:
[ 878.094333]
[ 878.094333] Code: cc 51 41 53 b8 1c 00 00 00 0f 05 41 5b 59 c3 cc cc cc cc
cc cc cc cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05
[ 876.260078] Stack:
[ 876.260078] Call Trace:
[ 876.260078] Inexact backtrace:
[ 876.260078]
[ 876.260078] Code: cc 51 41 53 b8 1c 00 00 00 0f 05 41 5b 59 c3 cc cc cc cc
cc cc cc cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05
[ 879.346565] Stack:
[ 879.346565] Call Trace:
[ 879.346565] Inexact backtrace:^^^^^^^^^^^^^^
------------------ ???????? ------------------
??????: "????"<406568...@qq.com>;
????????: 2013??6??19??(??????) ????7:32
??????: "edk2-devel";
????: [edk2] PeriodicTimerDispatchProtocol sharp reduce the IOperformence ?
HI??
InsydeH2O 1.06,
I have writed a SMI handler which is using the
EFI_SMM_PERIODIC_TIMER_DISPATCH_PROTOCOL,the SmiTickInterval value is set to
32s and the period is set to 640s, and it is work well,but then I find that the
copy speed has sharp reduce from 130MB/s to 38MB/s.Why?
How to improve the perfomence ?
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