Anita Zhang
5aaa55d841
There's a very gradual increase of anonymous memory in systemd-journald that blames to2ac67221bb. systemd-journald makes many calls to read /proc/PID/cmdline and /proc/PID/status, both of which tend to be well under 4K. However the combination of allocating 4M read buffers, then using `realloc()` to shrink the buffer in `read_virtual_file()` appears to be creating fragmentation in the heap (when combined with the other allocations systemd-journald is doing). To help mitigate this, try reading /proc with a 4K buffer as `read_virtual_file()` did before2ac67221bb. If it isn't big enough then try again with the larger buffers.
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