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SubjectRe: [PATCH -tip] perf: x86, add SandyBridge support
> +	[ C(OP_READ) ] = {
> + [ C(RESULT_ACCESS) ] = 0x04d1, /* MEM_LOAD_UOPS_RETIRED.LLC_HIT */
> + [ C(RESULT_MISS) ] = 0x0,
> + },
> + [ C(OP_WRITE) ] = {
> + [ C(RESULT_ACCESS) ] = 0x0424, /* L2_RQSTS.RFO_HITS */
> + [ C(RESULT_MISS) ] = 0x0824, /* L2_RQSTS.RFO_MISS */

No! You really need offcore here. L2 is not LLC!!!
See the offcore patchkit which fixes this for Nehalem.

-Andi


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