projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | |
| 2 | #include "acconfig.h" | |
| 3 | #include "include/compat.h" | |
| 4 | #include "include/types.h" | |
| 5 | #include "MemoryModel.h" | |
| 6 | #include "common/config.h" | |
| 7 | #include "debug.h" | |
| 8 | #if defined(__linux__) | |
| 9 | #include <malloc.h> | |
| 10 | #endif | |
| 11 | ||
| 12 | #include <fstream> | |
| 13 | ||
| 14 | #define dout_subsys ceph_subsys_ | |
| 15 | ||
| 16 | MemoryModel::MemoryModel(CephContext *cct_) | |
| 17 | : cct(cct_) | |
| 18 | { | |
| 19 | } | |
| 20 | ||
| 21 | void MemoryModel::_sample(snap *psnap) | |
| 22 | { | |
| 23 | ifstream f; | |
| 24 | ||
| 25 | f.open(PROCPREFIX "/proc/self/status"); | |
| 26 | if (!f.is_open()) { | |
| 27 | ldout(cct, 0) << "check_memory_usage unable to open " PROCPREFIX "/proc/self/status" << dendl; | |
| 28 | return; | |
| 29 | } | |
| 30 | while (!f.eof()) { | |
| 31 | string line; | |
| 32 | getline(f, line); | |
| 33 | ||
| 34 | if (strncmp(line.c_str(), "VmSize:", 7) == 0) | |
| 35 | psnap->size = atol(line.c_str() + 7); | |
| 36 | else if (strncmp(line.c_str(), "VmRSS:", 6) == 0) | |
| 37 | psnap->rss = atol(line.c_str() + 7); | |
| 38 | else if (strncmp(line.c_str(), "VmHWM:", 6) == 0) | |
| 39 | psnap->hwm = atol(line.c_str() + 7); | |
| 40 | else if (strncmp(line.c_str(), "VmLib:", 6) == 0) | |
| 41 | psnap->lib = atol(line.c_str() + 7); | |
| 42 | else if (strncmp(line.c_str(), "VmPeak:", 7) == 0) | |
| 43 | psnap->peak = atol(line.c_str() + 7); | |
| 44 | else if (strncmp(line.c_str(), "VmData:", 7) == 0) | |
| 45 | psnap->data = atol(line.c_str() + 7); | |
| 46 | } | |
| 47 | f.close(); | |
| 48 | ||
| 49 | f.open(PROCPREFIX "/proc/self/maps"); | |
| 50 | if (!f.is_open()) { | |
| 51 | ldout(cct, 0) << "check_memory_usage unable to open " PROCPREFIX "/proc/self/maps" << dendl; | |
| 52 | return; | |
| 53 | } | |
| 54 | ||
| 55 | long heap = 0; | |
| 56 | while (f.is_open() && !f.eof()) { | |
| 57 | string line; | |
| 58 | getline(f, line); | |
| 59 | //ldout(cct, 0) << "line is " << line << dendl; | |
| 60 | ||
| 61 | const char *start = line.c_str(); | |
| 62 | const char *dash = start; | |
| 63 | while (*dash && *dash != '-') dash++; | |
| 64 | if (!*dash) | |
| 65 | continue; | |
| 66 | const char *end = dash + 1; | |
| 67 | while (*end && *end != ' ') end++; | |
| 68 | if (!*end) | |
| 69 | continue; | |
| 70 | unsigned long long as = strtoll(start, 0, 16); | |
| 71 | unsigned long long ae = strtoll(dash+1, 0, 16); | |
| 72 | ||
| 73 | //ldout(cct, 0) << std::hex << as << " to " << ae << std::dec << dendl; | |
| 74 | ||
| 75 | end++; | |
| 76 | const char *mode = end; | |
| 77 | ||
| 78 | int skip = 4; | |
| 79 | while (skip--) { | |
| 80 | end++; | |
| 81 | while (*end && *end != ' ') end++; | |
| 82 | } | |
| 83 | if (*end) | |
| 84 | end++; | |
| 85 | ||
| 86 | long size = ae - as; | |
| 87 | //ldout(cct, 0) << "size " << size << " mode is '" << mode << "' end is '" << end << "'" << dendl; | |
| 88 | ||
| 89 | /* | |
| 90 | * anything 'rw' and anon is assumed to be heap. | |
| 91 | */ | |
| 92 | if (mode[0] == 'r' && mode[1] == 'w' && !*end) | |
| 93 | heap += size; | |
| 94 | } | |
| 95 | ||
| 96 | psnap->heap = heap >> 10; | |
| 97 | ||
| 98 | } |