Added new alias for events.

On AMD box:

 $ ./perf stat -e l1d -e l1d-misses -e l1d-write -e l1d-prefetch -e l1d-prefetch-miss -e l1i -e l1i-misses -e l1i-prefetch -e l2 -e l2-misses -e l2-write -e dtlb -e dtlb-misses -e itlb -e itlb-misses -e bpu -e bpu-misses -- ls -lR /usr/include/ > /dev/null

Before :

 Performance counter stats for 'ls -lR /usr/include/':

      248064467  L1-data-Cache-Load-Referencees  (scaled from 23.27%)
        1001433  L1-data-Cache-Load-Misses  (scaled from 23.34%)
         153691  L1-data-Cache-Store-Referencees  (scaled from 23.34%)
         423248  L1-data-Cache-Prefetch-Referencees  (scaled from 23.33%)
         302138  L1-data-Cache-Prefetch-Misses  (scaled from 23.25%)
      251217546  L1-instruction-Cache-Load-Referencees  (scaled from 23.25%)
        5757005  L1-instruction-Cache-Load-Misses  (scaled from 23.23%)
          93435  L1-instruction-Cache-Prefetch-Referencees  (scaled from 23.24%)
        6496073  L2-Cache-Load-Referencees  (scaled from 23.32%)
         609485  L2-Cache-Load-Misses  (scaled from 23.45%)
        6876991  L2-Cache-Store-Referencees  (scaled from 23.71%)
      248922840  Data-TLB-Cache-Load-Referencees  (scaled from 23.94%)
        5828386  Data-TLB-Cache-Load-Misses  (scaled from 24.17%)
      257613506  Instruction-TLB-Cache-Load-Referencees  (scaled from 24.20%)
           6833  Instruction-TLB-Cache-Load-Misses  (scaled from 23.88%)
      109043606  Branch-Cache-Load-Referencees  (scaled from 23.64%)
        5552296  Branch-Cache-Load-Misses  (scaled from 23.42%)

    0.413702461  seconds time elapsed.

After :

 Peformance counter stats for 'ls -lR /usr/include/':

      266590464  L1-d$-loads           (scaled from 23.03%)
        1222273  L1-d$-load-misses     (scaled from 23.58%)
         146204  L1-d$-stores          (scaled from 23.83%)
         406344  L1-d$-prefetches      (scaled from 24.09%)
         283748  L1-d$-prefetch-misses (scaled from 24.10%)
      249650965  L1-i$-loads           (scaled from 23.80%)
        3353961  L1-i$-load-misses     (scaled from 23.82%)
         104599  L1-i$-prefetches      (scaled from 23.68%)
        4836405  LLC-loads             (scaled from 23.67%)
         498214  LLC-load-misses       (scaled from 23.66%)
        4953994  LLC-stores            (scaled from 23.64%)
      243354097  dTLB-loads            (scaled from 23.77%)
        6468584  dTLB-load-misses      (scaled from 23.74%)
      249719549  iTLB-loads            (scaled from 23.25%)
           5060  iTLB-load-misses      (scaled from 23.00%)
      112343016  branch-loads          (scaled from 22.76%)
        5528876  branch-load-misses    (scaled from 22.54%)

    0.427154051  seconds time elapsed.

Reported-by : Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1245934522.5308.39.camel@hpdv5.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>