Hi, I want to trace page faults in my program. The result I wanted like this: 1st page fault at addrA. 2nd page fault at addrB. 3rd page fault at addrC ... Perf seems providing this function, but I can't get what I want. I use Perf on Fedora 14(kernel 2.6.35). The following is what I have done in my machine. Thanks for help in advance. [root@localhost lab]# perf record -R -c 1 -d -e faults ./hello hello,world [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.010 MB perf.data (~418 samples) ] [root@localhost lab]# perf report -n # Events: 91 cycles # # Overhead Samples Command Shared Object Symbol # ........ .......... ....... ................. ...... # 10.99% 10 hello ld-2.12.90.so [.] .L198 6.59% 6 hello ld-2.12.90.so [.] _dl_load_cache_lookup 6.59% 6 hello ld-2.12.90.so [.] _dl_lookup_symbol_x 4.40% 4 hello ld-2.12.90.so [.] dl_main 3.30% 3 hello ld-2.12.90.so [.] _dl_start 3.30% 3 hello ld-2.12.90.so [.] _dl_cache_libcmp 3.30% 3 hello ld-2.12.90.so [.] do_lookup_x 2.20% 2 hello libc-2.12.90.so [.] _init 2.20% 2 hello libc-2.12.90.so [.] _IO_file_overflow_internal 2.20% 2 hello ld-2.12.90.so [.] _dl_map_object_from_fd 2.20% 2 hello ld-2.12.90.so [.] _dl_init_paths 2.20% 2 hello ld-2.12.90.so [.] _dl_setup_hash 2.20% 2 hello ld-2.12.90.so [.] .L302 .......................