vc_client.native has run for about 19 hours vc_client_old.native has for about 14 hours Tasks: 272 total, 3 running, 269 sleeping, 0 stopped, 0 zombie Cpu(s): 20.2%us, 3.2%sy, 0.0%ni, 76.3%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st Mem: 4004736k total, 3633672k used, 371064k free, 262916k buffers Swap: 4070396k total, 14160k used, 4056236k free, 1417088k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 25111 hans 20 0 453m 76m 13m R 50 2.0 319:04.86 vc_client_old.n 10275 hans 20 0 553m 99m 13m S 19 2.5 188:30.50 vc_client.nativ vc_client_old.native CPU: Intel Sandy Bridge microarchitecture, speed 2.201e+06 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (No unit mask) count 100000 samples % image name symbol name 230093 51.8571 vc_client_old.native mark_slice 99659 22.4606 vc_client_old.native sweep_slice 76563 17.2553 vc_client_old.native caml_page_table_lookup 13215 2.9783 vc_client_old.native caml_fl_merge_block 1814 0.4088 vc_client_old.native truncate_flp 1013 0.2283 vc_client_old.native caml_gc_stat 784 0.1767 vc_client_old.native caml_iterate_global_roots 775 0.1747 vc_client_old.native caml_fl_allocate 564 0.1271 vc_client_old.native camlLividisvc__Nalbuf_tools__replace_pattern_1033 545 0.1228 vc_client_old.native caml_oldify_local_roots 503 0.1134 vc_client_old.native caml_modify 453 0.1021 vc_client_old.native camlLividisvc__Nalbuf_bytestream__search_1047 446 0.1005 vc_client_old.native caml_delete_global_root 412 0.0929 vc_client_old.native caml_do_roots 343 0.0773 vc_client_old.native caml_darken 306 0.0690 vc_client_old.native lwt_glib_get_sources 297 0.0669 vc_client_old.native caml_insert_global_root 250 0.0563 vc_client_old.native camlUq_gtk__fun_1484 213 0.0480 vc_client_old.native camlHashtbl__find_1093 205 0.0462 vc_client_old.native compare_val 195 0.0439 vc_client_old.native camlLwt_glib__enter_1079 191 0.0430 [vdso] (tgid:25111 range:0x7fff12dff000-0x7fff12e00000) [vdso] (tgid:25111 range:0x7fff12dff000-0x7fff12e00000) 190 0.0428 vc_client_old.native caml_stash_backtrace 188 0.0424 vc_client_old.native caml_oldify_one 185 0.0417 vc_client_old.native camlHashtbl__replace_1112 179 0.0403 vc_client_old.native caml_alloc_string 176 0.0397 vc_client_old.native camlMedia_ctrl__fun_3055 176 0.0397 vc_client_old.native caml_c_call 173 0.0390 vc_client_old.native camlList__iter_1074 171 0.0385 vc_client_old.native caml_apply2 164 0.0370 vc_client_old.native caml_obj_dup 159 0.0358 vc_client_old.native caml_send0 vc_client.native CPU: Intel Sandy Bridge microarchitecture, speed 2.201e+06 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (No unit mask) count 100000 samples % image name symbol name 50295 45.3259 vc_client.native mark_slice 17964 16.1892 vc_client.native sweep_slice 14450 13.0224 vc_client.native caml_page_table_lookup 2137 1.9259 vc_client.native caml_fl_merge_block 1397 1.2590 vc_client.native caml_fl_allocate 1305 1.1761 vc_client.native caml_gc_stat 599 0.5398 vc_client.native camlLividisvc__Nalbuf_tools__replace_pattern_1033 546 0.4921 vc_client.native camlLividisvc__Nalbuf_bytestream__search_1047 544 0.4903 vc_client.native caml_modify 540 0.4866 vc_client.native caml_delete_global_root 422 0.3803 vc_client.native caml_iterate_global_roots 404 0.3641 vc_client.native truncate_flp 339 0.3055 vc_client.native camlUq_gtk__fun_1484 327 0.2947 vc_client.native camlHashtbl__find_1093 311 0.2803 vc_client.native caml_insert_global_root 290 0.2613 vc_client.native lwt_glib_get_sources 284 0.2559 vc_client.native caml_oldify_local_roots 260 0.2343 vc_client.native camlMedia_ctrl__fun_3055 260 0.2343 vc_client.native camlUnixqueue_select__fun_2366 248 0.2235 vc_client.native compare_val 239 0.2154 vc_client.native caml_stash_backtrace 220 0.1983 [vdso] (tgid:10275 range:0x7fffea534000-0x7fffea535000) [vdso] (tgid:10275 range:0x7fffea534000-0x7fffea535000) 219 0.1974 vc_client.native camlLwt_glib__enter_1079 206 0.1856 vc_client.native camlList__iter_1074 202 0.1820 vc_client.native caml_apply2 196 0.1766 vc_client.native caml_c_call 194 0.1748 vc_client.native caml_send0 180 0.1622 vc_client.native camlHashtbl__replace_1112 180 0.1622 vc_client.native caml_alloc_string 176 0.1586 vc_client.native caml_obj_dup 176 0.1586 vc_client.native caml_oldify_one 173 0.1559 vc_client.native caml_remove_generational_global_root 171 0.1541 vc_client.native caml_curry3_2 vc_client.native CPU: Intel Sandy Bridge microarchitecture, speed 2.201e+06 MHz (estimated) Counted LLC_MISSES events (Last level cache demand requests from this core that missed the LLC) with a unit mask of 0x41 (No unit mask) count 100000 samples % image name symbol name 598 53.3452 vc_client.native mark_slice 261 23.2828 vc_client.native caml_page_table_lookup 23 2.0517 vc_client.native sweep_slice 13 1.1597 vc_client.native caml_fl_allocate 6 0.5352 vc_client.native camlUq_gtk__fun_1484 5 0.4460 vc_client.native caml_delete_global_root 4 0.3568 vc_client.native camlEqueue__run_1119 4 0.3568 vc_client.native camlHashtbl__find_1093 4 0.3568 vc_client.native camlLividisvc__Nalbuf_bytestream__search_1047 4 0.3568 vc_client.native camlMedia_ctrl__fun_3055 4 0.3568 vc_client.native camlUnixqueue_select__method_run_1662 4 0.3568 vc_client.native caml_callback_exn 4 0.3568 vc_client.native caml_iterate_global_roots 4 0.3568 vc_client.native caml_modify 3 0.2676 vc_client.native camlAudio_encoder__transfer_audio_frame_1052 3 0.2676 vc_client.native camlBitstring_structs__string_of_rtp_ext_1030 3 0.2676 vc_client.native camlHashtbl__replace_1112 3 0.2676 vc_client.native camlLwt_glib__leave_1085 3 0.2676 vc_client.native camlSequencer__serialize_header_2231 3 0.2676 vc_client.native camlUnixqueue_select__fun_2366 3 0.2676 vc_client.native camlUq_gtk__code_begin 3 0.2676 vc_client.native caml_apply2 3 0.2676 vc_client.native caml_curry3_2 3 0.2676 vc_client.native caml_gc_stat 3 0.2676 vc_client.native caml_hash_univ_param 3 0.2676 vc_client.native caml_send0 3 0.2676 vc_client.native compare_val 2 0.1784 vc_client.native camlBuffer__create_1039 2 0.1784 vc_client.native camlList__iter_1074 2 0.1784 vc_client.native camlLwt__wait_1290 2 0.1784 vc_client.native camlLwt_sequence__loop_1098 2 0.1784 vc_client.native camlMedia_ctrl__fun_3085 2 0.1784 vc_client.native camlMedia_ctrl__receiver_cbfun_2123 2 0.1784 vc_client.native camlPervasives__min_1022 2 0.1784 vc_client.native camlProfiles__fec_percentage_1232 2 0.1784 vc_client.native camlScanf__scan_1702 2 0.1784 vc_client.native camlScanf__scan_format_1685 2 0.1784 vc_client.native camlSequencer__my_push_2260 2 0.1784 vc_client.native camlUnixqueue_select__fun_1864 2 0.1784 vc_client.native camlUnixqueue_select__method_protect_1800 2 0.1784 vc_client.native camlUnixqueue_select__method_uq_handler_1726 2 0.1784 vc_client.native caml_curry4_1 2 0.1784 vc_client.native caml_insert_global_root vc_client_old.native CPU: Intel Sandy Bridge microarchitecture, speed 2.201e+06 MHz (estimated) Counted LLC_MISSES events (Last level cache demand requests from this core that missed the LLC) with a unit mask of 0x41 (No unit mask) count 100000 samples % symbol name 2411 65.8563 mark_slice 923 25.2117 caml_page_table_lookup 101 2.7588 sweep_slice 10 0.2731 caml_iterate_global_roots 8 0.2185 caml_oldify_local_roots 7 0.1912 caml_fl_allocate 7 0.1912 caml_fl_merge_block 5 0.1366 camlHashtbl__replace_1112 5 0.1366 camlLividisvc__Nalbuf_bytestream__search_1047 5 0.1366 camlUq_gtk__fun_1484 5 0.1366 caml_delete_global_root 4 0.1093 camlLwt_glib__enter_1079 4 0.1093 caml_darken 4 0.1093 caml_send2 3 0.0819 camlBitstring___add_bits_1532 3 0.0819 camlEqueue__run_1119 3 0.0819 camlLwt_sequence__loop_1098 3 0.0819 camlSubstream_seqnum__code_begin 3 0.0819 caml_alloc_string 3 0.0819 compare_val 3 0.0819 lwt_glib_get_sources 2 0.0546 camlBitstring__add_byte_1515 2 0.0546 camlBuffer__create_1039 2 0.0546 camlGObj__method_draw_3325 2 0.0546 camlHashtbl__find_1093 2 0.0546 camlHashtbl__find_1198 2 0.0546 camlHashtbl__iter_1129 2 0.0546 camlList__iter_1074 2 0.0546 camlLividicore__Filter__eval_tree_1110 2 0.0546 camlMcsvc_types__add_header_1175 2 0.0546 camlMedia_ctrl__fun_3085 2 0.0546 camlPervasives__$5e_1112 2 0.0546 camlSubstream_seqnum__my_push_1197 2 0.0546 camlUnixqueue_select__fun_2314 2 0.0546 camlUnixqueue_util__dlogr_1060 2 0.0546 caml_apply2 2 0.0546 caml_apply3 2 0.0546 caml_c_call 2 0.0546 caml_curry3_1 2 0.0546 caml_do_roots 2 0.0546 caml_gc_stat 2 0.0546 caml_hash_univ_param 2 0.0546 caml_modify 2 0.0546 fdlist_to_fdset at startup it looks like this: top - 12:16:03 up 2 days, 2:37, 35 users, load average: 0.02, 0.02, 0.05 Tasks: 1 total, 0 running, 1 sleeping, 0 stopped, 0 zombie Cpu(s): 19.7%us, 4.1%sy, 0.0%ni, 75.7%id, 0.2%wa, 0.0%hi, 0.3%si, 0.0%st Mem: 4004736k total, 3634484k used, 370252k free, 263976k buffers Swap: 4070396k total, 14160k used, 4056236k free, 1424216k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 12906 hans 20 0 453m 76m 13m S 14 2.0 0:14.62 vc_client_old.n CPU: Intel Sandy Bridge microarchitecture, speed 2.201e+06 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (No unit mask) count 100000 samples % image name symbol name 12046 25.2045 vc_client_old.native mark_slice 8590 17.9733 vc_client_old.native caml_page_table_lookup 6311 13.2049 vc_client_old.native sweep_slice 718 1.5023 vc_client_old.native camlLividisvc__Nalbuf_tools__replace_pattern_1033 633 1.3245 vc_client_old.native caml_fl_allocate 536 1.1215 vc_client_old.native caml_modify 505 1.0566 vc_client_old.native caml_do_roots 484 1.0127 vc_client_old.native camlLividisvc__Nalbuf_bytestream__search_1047 483 1.0106 vc_client_old.native caml_iterate_global_roots 471 0.9855 vc_client_old.native caml_darken 412 0.8621 vc_client_old.native caml_delete_global_root 371 0.7763 vc_client_old.native caml_oldify_local_roots 323 0.6758 vc_client_old.native caml_insert_global_root 304 0.6361 vc_client_old.native caml_fl_merge_block 291 0.6089 vc_client_old.native lwt_glib_get_sources 266 0.5566 vc_client_old.native camlHashtbl__find_1093 216 0.4519 [vdso] (tgid:12906 range:0x7fffba5fc000-0x7fffba5fd000) [vdso] (tgid:12906 range:0x7fffba5fc000-0x7fffba5fd000) 216 0.4519 vc_client_old.native compare_val 215 0.4499 vc_client_old.native camlLwt_glib__enter_1079 205 0.4289 vc_client_old.native camlUq_gtk__fun_1484 202 0.4227 vc_client_old.native caml_alloc_string 200 0.4185 vc_client_old.native caml_c_call 193 0.4038 vc_client_old.native caml_oldify_one 192 0.4017 vc_client_old.native caml_stash_backtrace 187 0.3913 vc_client_old.native camlMedia_ctrl__fun_3055