Hello, Is there some tools / tricks that can be used to help find memory leaks?
I have trouble with an application, that when running for a long time, starts to use a lot of CPU and consume more memory. It starts out by using about 20% CPU (reported by top) and after 24 hours it has increased to 80% usage. Also physical (RES) memory usage goes from 80M to 160M. The workload for the application is the same the whole time. Using OProfile (http://oprofile.sourceforge.net/news/) shows that that most of the time is being spent doing memory management. At startup: CPU: Core 2, speed 2667 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000 samples % image name symbol name 52764 22.3913 vc_client.native mark_slice 33580 14.2502 vc_client.native caml_page_table_lookup 25415 10.7853 vc_client.native sweep_slice 10119 4.2942 vc_client.native caml_fl_allocate 6423 2.7257 [vdso] (tgid:9015 range:0x7fff4256c000-0x7fff4256d000) [vdso] (tgid:9015 range:0x7fff4256c000-0x7fff4256d000) 5233 2.2207 vc_client.native camlLividisvc__Nalbuf_tools__replace_pattern_1033 2759 1.1708 vc_client.native caml_iterate_global_roots 2728 1.1577 vc_client.native caml_modify 2473 1.0495 vc_client.native caml_oldify_one 2204 0.9353 vc_client.native camlLividisvc__Nalbuf_bytestream__search_1047 2183 0.9264 vc_client.native caml_darken 1935 0.8212 vc_client.native caml_stash_backtrace 1843 0.7821 vc_client.native caml_do_roots 1838 0.7800 vc_client.native caml_delete_global_root After ca. 24 hours run: CPU: Core 2, speed 2667 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000 samples % image name symbol name 1137401 56.2697 vc_client.native mark_slice 405598 20.0658 vc_client.native sweep_slice 399832 19.7806 vc_client.native caml_page_table_lookup 10106 0.5000 vc_client.native caml_fl_allocate 3548 0.1755 vc_client.native caml_iterate_global_roots 3397 0.1681 [vdso] (tgid:26129 range:0x7fff747ff000-0x7fff74800000) [vdso] (tgid:26129 range:0x7fff747ff000-0x7fff74800000) 2797 0.1384 vc_client.native camlLividisvc__Nalbuf_tools__replace_ pattern_1033 2307 0.1141 vc_client.native camlLividisvc__Nalbuf_bytestream__sea rch_1047 2005 0.0992 vc_client.native caml_oldify_local_roots 1786 0.0884 vc_client.native caml_gc_stat 1441 0.0713 vc_client.native caml_oldify_one 1163 0.0575 vc_client.native caml_darken 1163 0.0575 vc_client.native caml_fl_merge_block 1032 0.0511 vc_client.native camlHashtbl__find_1093 The application uses several 3rd party libraries, including: LablGTK2, OCamlNet, LWT and others. Is there some clever trick that can by used to track down or get a hint of what is causing this? Thanks, Hans Ole Rafaelsen -- Caml-list mailing list. Subscription management and archives: https://sympa-roc.inria.fr/wws/info/caml-list Beginner's list: http://groups.yahoo.com/group/ocaml_beginners Bug reports: http://caml.inria.fr/bin/caml-bugs
