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Linux: overhaul io process fields

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- avoid UBSAN conversions
- print N/A on no data (i.e. as unprivileged user)
- fix rate calculation to show bytes (instead of a thousandth)
- print bytes as human number (i.e. 8MB) instead of 8388608
- stabilize sorting by adjusting NAN values to very tiny negative number
This commit is contained in:
Christian Göttsche
2021-01-27 15:11:48 +01:00
committed by BenBE
parent fee744abd2
commit fdaa15bd8d
5 changed files with 70 additions and 47 deletions
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37
linux/LinuxProcessList.c
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@ -385,15 +385,14 @@ static void LinuxProcessList_readIoFile(LinuxProcess* process, openat_arg_t proc
if (r < 0) {
process->io_rate_read_bps = NAN;
process->io_rate_write_bps = NAN;
process->io_rchar = -1LL;
process->io_wchar = -1LL;
process->io_syscr = -1LL;
process->io_syscw = -1LL;
process->io_read_bytes = -1LL;
process->io_write_bytes = -1LL;
process->io_cancelled_write_bytes = -1LL;
process->io_rate_read_time = -1LL;
process->io_rate_write_time = -1LL;
process->io_rchar = ULLONG_MAX;
process->io_wchar = ULLONG_MAX;
process->io_syscr = ULLONG_MAX;
process->io_syscw = ULLONG_MAX;
process->io_read_bytes = ULLONG_MAX;
process->io_write_bytes = ULLONG_MAX;
process->io_cancelled_write_bytes = ULLONG_MAX;
process->io_last_scan_time = now;
return;
}
@ -405,22 +404,18 @@ static void LinuxProcessList_readIoFile(LinuxProcess* process, openat_arg_t proc
switch (line[0]) {
case 'r':
if (line[1] == 'c' && String_startsWith(line + 2, "har: ")) {
process->io_rchar = strtoull(line + 7, NULL, 10);
process->io_rchar = strtoull(line + 7, NULL, 10) / ONE_K;
} else if (String_startsWith(line + 1, "ead_bytes: ")) {
process->io_read_bytes = strtoull(line + 12, NULL, 10);
process->io_rate_read_bps =
((double)(process->io_read_bytes - last_read)) / (((double)(now - process->io_rate_read_time)) / 1000);
process->io_rate_read_time = now;
process->io_read_bytes = strtoull(line + 12, NULL, 10) / ONE_K;
process->io_rate_read_bps = ONE_K * (process->io_read_bytes - last_read) / (now - process->io_last_scan_time);
}
break;
case 'w':
if (line[1] == 'c' && String_startsWith(line + 2, "har: ")) {
process->io_wchar = strtoull(line + 7, NULL, 10);
process->io_wchar = strtoull(line + 7, NULL, 10) / ONE_K;
} else if (String_startsWith(line + 1, "rite_bytes: ")) {
process->io_write_bytes = strtoull(line + 13, NULL, 10);
process->io_rate_write_bps =
((double)(process->io_write_bytes - last_write)) / (((double)(now - process->io_rate_write_time)) / 1000);
process->io_rate_write_time = now;
process->io_write_bytes = strtoull(line + 13, NULL, 10) / ONE_K;
process->io_rate_write_bps = ONE_K * (process->io_write_bytes - last_write) / (now - process->io_last_scan_time);
}
break;
case 's':
@ -432,10 +427,12 @@ static void LinuxProcessList_readIoFile(LinuxProcess* process, openat_arg_t proc
break;
case 'c':
if (String_startsWith(line + 1, "ancelled_write_bytes: ")) {
process->io_cancelled_write_bytes = strtoull(line + 23, NULL, 10);
process->io_cancelled_write_bytes = strtoull(line + 23, NULL, 10) / ONE_K;
}
}
}
process->io_last_scan_time = now;
}
typedef struct LibraryData_ {