Read For Ownership
________________________________
From: �S�淖� [mailto:boo2c...@gmail.com]
Sent: Saturday, June 12, 2010 7:35 PM
To: perfmon2-devel@lists.sourceforge.net
Subject: [perfmon2] pfmon event L2_WRITE
hi,
the following message is the illustration for the event "L2_WRITE" on i7
processor :
Name : L2_WRITE
Code : 0x27
Counters : [ 0 1 2 3 ]
Desc : L2 demand lock RFOs in E state
Umask-00 : 0x40 : [LOCK_E_STATE] : L2 demand lock RFOs in E state
Umask-01 : 0x10 : [LOCK_I_STATE] : L2 demand lock RFOs in I state (misses)
Umask-02 : 0x20 : [LOCK_S_STATE] : L2 demand lock RFOs in S state
Umask-03 : 0xe0 : [LOCK_HIT] : All demand L2 lock RFOs that hit the cache
Umask-04 : 0x80 : [LOCK_M_STATE] : L2 demand lock RFOs in M state
Umask-05 : 0xf0 : [LOCK_MESI] : All demand L2 lock RFOs
Umask-06 : 0x0e : [RFO_HIT] : All L2 demand store RFOs that hit the cache
Umask-07 : 0x01 : [RFO_I_STATE] : L2 demand store RFOs in I state (misses)
Umask-08 : 0x08 : [RFO_M_STATE] : L2 demand store RFOs in M state
Umask-09 : 0x0f : [RFO_MESI] : All L2 demand store RFOs
Umask-10 : 0x02 : [RFO_S_STATE] : L2 demand store RFOs in S state
PEBS : No
Uncore : No
I want to ask what does "RFO" represent ?
thank you,
Best Regards,
Joe
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