This restores the original behavior. The main reason it should be this
way is to make the class generic for all things memory under
/proc/<pid>/. For example, with the current behavior, a program that
only needs to read /proc/<pid>/smaps_rollup will end up wasting time and
memory by parsing /proc/<pid>/maps when the object is being constructed.
Same goes for a program that only wants to reset the working set.
The 'ProcMemInfo' object still retains the property that it can only be
used once to read maps and the object must be destroyed + recreated to
update the stats.
Bug: 114325007
Bug: 111694435
Test: libmeminfo_test 1
Test:
# adb push /google/data/ro/users/ss/sspatil/test-memutils.sh /data/local/tmp/
# adb push procmem2 /data/local/tmp && adb push procrank2 /data/local/tmp
# adb root && adb shell
$ cd /data/local/tmp/
$ chmod +x test-memutils.sh
$ ./test-memutils.sh 2>&1 | tee test.log
Change-Id: I856d3b78a0088cff02cbd010b29ffbe0e35f5ee2
Signed-off-by: Sandeep Patil <sspatil@google.com>
Adds procmeminfo API to get the vector of swap_offsets
if SWAP is enabled on the device.
Bug: 114325007
Bug: 111694435
Test: libmeminfo_test 1
Change-Id: If0b52d042749a5bcb2c87aa2cb1595190d4769b1
Signed-off-by: Sandeep Patil <sspatil@google.com>
The library is expected to be a unified place for all components to read
both global and per-process memory accounting form kernel including
getting the working set. This change adds the PageInfo, MemInfo and
ProcMemInfo classes and verifies the implementation against libpagemap
for correctness.
Adds a procmem2 tool show the usage.
TODO: Plumbing in os_debug, add vmastats, zoneinfo etc parsing.
Test: libmeminfo_test 1
Test: procmem2 1
Test: procmem2 -h -W 1
Test: procmem2 -h -w 1
Test: libmeminfo_benchmark
Bug: 111694435
Bug: 114325007
Change-Id: I280440b1dc26a498170686d10fcf63f953a0dcbd
Signed-off-by: Sandeep Patil <sspatil@google.com>
