I had a few hours look at the second largest process, the journal activity, on Joyride 2412.
VmPeak: 40440 kB VmSize: 40436 kB VmLck: 0 kB VmHWM: 28824 kB VmRSS: 28824 kB VmData: 11632 kB VmStk: 172 kB VmExe: 4 kB VmLib: 21992 kB VmPTE: 48 kB so it costs 29Mb or so of RSS, most of which is presumably shared. This is confirmed by smaps, which showed 9Mb or so used by heap. That was the main memory cost, so I concentrated on it. It was the largest Private_Dirty. 0824f000-08be9000 rw-p 0824f000 00:00 0 [heap] Size: 9832 kB Rss: 9608 kB Pss: 9608 kB Shared_Clean: 0 kB Shared_Dirty: 0 kB Private_Clean: 0 kB Private_Dirty: 9608 kB Referenced: 9608 kB For a while I tried working with /proc/$PID/mem until I figured it just would not work, always got ESRCH on read(2), and mem_read showed I could only do it to processes that are children of my process. Odd, so abandoned that method. Then I used gdb to generate-core-file and wander through the heap memory to get an idea of what it might contain. I did not make a complete analysis. I need to learn more about the heap structures before I do so. But I did notice one odd thing that I wasn't fully aware of until now ... the byte-code of the built-in modules was present, complete with doc strings ... for example; (gdb) x/4bs 0x824f78c 0x824f78c: "int(x[, base]) -> integer\n\nConvert a string or number to an integer, if possible. A floating point\nargument will be truncated towards zero (this does not include a string\nrepresentation of a floating"... 0x824f854: " point number!) When converting a string, use\nthe optional base. It is an error to supply a base when converting a\nnon-string. If the argument is outside the integer range a long object\nwill be retu"... 0x824f91c: "rned instead." 0x824f92a: "" and not just once, twice: $ strings journal.core |grep "supply a base when converting" the optional base. It is an error to supply a base when converting a the optional base. It is an error to supply a base when converting a Has anyone got an idea of how to measure the heap by usage? -- James Cameron mailto:[EMAIL PROTECTED] http://quozl.netrek.org/ _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
