meminfo: Remove unnecessary working set stats
The Vma and ProcMemInfo objects do not need separate stats
objects for storing working set. The Vma either has working set
or memory usage information and never both.
Bug: 111694435
Test: libmeminfo_test 1
Change-Id: I2df05f7e750bbba4325474633e705d6d68dd2ccb
Merged-In: I2df05f7e750bbba4325474633e705d6d68dd2ccb
Signed-off-by: Sandeep Patil <sspatil@google.com>
diff --git a/libmeminfo/include/meminfo/meminfo.h b/libmeminfo/include/meminfo/meminfo.h
index 5ee32d4..2fc7867 100644
--- a/libmeminfo/include/meminfo/meminfo.h
+++ b/libmeminfo/include/meminfo/meminfo.h
@@ -72,15 +72,10 @@
: start(s), end(e), offset(off), flags(f), name(n) {}
~Vma() = default;
- void clear() {
- memset(&usage, 0, sizeof(usage));
- memset(&wss, 0, sizeof(wss));
- }
+ void clear() { memset(&usage, 0, sizeof(usage)); }
// Memory usage of this mapping.
MemUsage usage;
- // Working set within this mapping.
- MemUsage wss;
};
} // namespace meminfo
diff --git a/libmeminfo/include/meminfo/procmeminfo.h b/libmeminfo/include/meminfo/procmeminfo.h
index 0bfd80f..c5f8c3c 100644
--- a/libmeminfo/include/meminfo/procmeminfo.h
+++ b/libmeminfo/include/meminfo/procmeminfo.h
@@ -82,7 +82,6 @@
std::vector<Vma> maps_;
MemUsage usage_;
- MemUsage wss_;
std::vector<uint16_t> swap_offsets_;
};
diff --git a/libmeminfo/procmeminfo.cpp b/libmeminfo/procmeminfo.cpp
index 18ae978..9345bda 100644
--- a/libmeminfo/procmeminfo.cpp
+++ b/libmeminfo/procmeminfo.cpp
@@ -157,14 +157,14 @@
if (!get_wss_) {
LOG(WARNING) << "Trying to read process working set for " << pid_
<< " using invalid object";
- return wss_;
+ return usage_;
}
if (maps_.empty() && !ReadMaps(get_wss_)) {
LOG(ERROR) << "Failed to get working set for Process " << pid_;
}
- return wss_;
+ return usage_;
}
bool ProcMemInfo::ForEachVma(const VmaCallback& callback) {
@@ -228,11 +228,7 @@
maps_.clear();
return false;
}
- if (get_wss) {
- add_mem_usage(&wss_, vma.wss);
- } else {
- add_mem_usage(&usage_, vma.usage);
- }
+ add_mem_usage(&usage_, vma.usage);
}
return true;
@@ -300,31 +296,20 @@
// This effectively makes vss = rss for the working set is requested.
// The libpagemap implementation returns vss > rss for
// working set, which doesn't make sense.
- vma.wss.vss += pagesz;
- vma.wss.rss += pagesz;
- vma.wss.uss += is_private ? pagesz : 0;
- vma.wss.pss += pagesz / pg_counts[i];
- if (is_private) {
- vma.wss.private_dirty += is_dirty ? pagesz : 0;
- vma.wss.private_clean += is_dirty ? 0 : pagesz;
- } else {
- vma.wss.shared_dirty += is_dirty ? pagesz : 0;
- vma.wss.shared_clean += is_dirty ? 0 : pagesz;
- }
+ vma.usage.vss += pagesz;
+ }
+
+ vma.usage.rss += pagesz;
+ vma.usage.uss += is_private ? pagesz : 0;
+ vma.usage.pss += pagesz / pg_counts[i];
+ if (is_private) {
+ vma.usage.private_dirty += is_dirty ? pagesz : 0;
+ vma.usage.private_clean += is_dirty ? 0 : pagesz;
} else {
- vma.usage.rss += pagesz;
- vma.usage.uss += is_private ? pagesz : 0;
- vma.usage.pss += pagesz / pg_counts[i];
- if (is_private) {
- vma.usage.private_dirty += is_dirty ? pagesz : 0;
- vma.usage.private_clean += is_dirty ? 0 : pagesz;
- } else {
- vma.usage.shared_dirty += is_dirty ? pagesz : 0;
- vma.usage.shared_clean += is_dirty ? 0 : pagesz;
- }
+ vma.usage.shared_dirty += is_dirty ? pagesz : 0;
+ vma.usage.shared_clean += is_dirty ? 0 : pagesz;
}
}
-
return true;
}
diff --git a/libmeminfo/tools/procmem.cpp b/libmeminfo/tools/procmem.cpp
index b9b174d..47881ed 100644
--- a/libmeminfo/tools/procmem.cpp
+++ b/libmeminfo/tools/procmem.cpp
@@ -98,7 +98,7 @@
std::stringstream ss;
print_header(ss);
for (auto& vma : maps) {
- const MemUsage& vma_stats = show_wss ? vma.wss : vma.usage;
+ const MemUsage& vma_stats = vma.usage;
if (hide_zeroes && vma_stats.rss == 0) {
continue;
}
@@ -116,14 +116,14 @@
int main(int argc, char* argv[]) {
int opt;
auto pss_sort = [](const Vma& a, const Vma& b) {
- uint64_t pss_a = show_wss ? a.wss.pss : a.usage.pss;
- uint64_t pss_b = show_wss ? b.wss.pss : b.usage.pss;
+ uint64_t pss_a = a.usage.pss;
+ uint64_t pss_b = b.usage.pss;
return pss_a > pss_b;
};
auto uss_sort = [](const Vma& a, const Vma& b) {
- uint64_t uss_a = show_wss ? a.wss.uss : a.usage.uss;
- uint64_t uss_b = show_wss ? b.wss.uss : b.usage.uss;
+ uint64_t uss_a = a.usage.uss;
+ uint64_t uss_b = b.usage.uss;
return uss_a > uss_b;
};
@@ -182,7 +182,7 @@
}
ProcMemInfo proc(pid, show_wss);
- const MemUsage& proc_stats = show_wss ? proc.Wss() : proc.Usage();
+ const MemUsage& proc_stats = proc.Usage();
std::vector<Vma> maps(proc.Maps());
if (sort_func != nullptr) {
std::sort(maps.begin(), maps.end(), sort_func);
diff --git a/libmeminfo/tools/procrank.cpp b/libmeminfo/tools/procrank.cpp
index a751722..21a684c 100644
--- a/libmeminfo/tools/procrank.cpp
+++ b/libmeminfo/tools/procrank.cpp
@@ -465,7 +465,7 @@
}
// Skip processes with no memory mappings
- uint64_t vss = show_wss ? proc.Wss().vss : proc.Usage().vss;
+ uint64_t vss = proc.Usage().vss;
if (vss == 0) return true;
// collect swap_offset counts from all processes in 1st pass