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| author | Colin Cross <ccross@android.com> | 2014-07-11 17:15:44 -0700 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2014-07-14 16:39:56 -0700 |
| commit | b28ff9131363f7b4a698990da5748b2a88c3ed35 (patch) | |
| tree | 828ca0e2db67e0549c0882eb0699ad376c8f2c13 /lmkd | |
| parent | 9d9e62cf376cf3f70ebf2a11335c02cc155416bc (diff) | |
| download | system_core-b28ff9131363f7b4a698990da5748b2a88c3ed35.zip system_core-b28ff9131363f7b4a698990da5748b2a88c3ed35.tar.gz system_core-b28ff9131363f7b4a698990da5748b2a88c3ed35.tar.bz2 | |
lmkd: mlock all memory
Use mlockall(MCL_FUTURE) to lock all lmkd pages in memory. This
avoids lmkd thrashing when the system is low on memory.
As a side effect, it will also keep the .text sections of liblog, libm,
libc, and libprocessgroup in memory at all times.
Bug: 16236289
Change-Id: Idd70557efa4b1e14bc86f14220672a30f6c956e3
Diffstat (limited to 'lmkd')
| -rw-r--r-- | lmkd/lmkd.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lmkd/lmkd.c b/lmkd/lmkd.c index 1aeb182..a952855 100644 --- a/lmkd/lmkd.c +++ b/lmkd/lmkd.c @@ -26,6 +26,7 @@ #include <sys/cdefs.h> #include <sys/epoll.h> #include <sys/eventfd.h> +#include <sys/mman.h> #include <sys/socket.h> #include <sys/types.h> #include <unistd.h> @@ -747,6 +748,7 @@ static void mainloop(void) { } int main(int argc __unused, char **argv __unused) { + mlockall(MCL_FUTURE); if (!init()) mainloop(); |