From: Sherry Yang <sherryy@android.com>
To: linux-kernel@vger.kernel.org
Cc: tkjos@google.com, maco@google.com,
"Sherry Yang" <sherryy@android.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Arve Hjønnevåg" <arve@android.com>,
"Riley Andrews" <riandrews@android.com>,
devel@driverdev.osuosl.org (open list:ANDROID DRIVERS)
Subject: [PATCH v3 6/6] android: binder: Add page usage in binder stats
Date: Tue, 29 Aug 2017 17:47:02 -0700 [thread overview]
Message-ID: <20170830004702.120371-7-sherryy@android.com> (raw)
In-Reply-To: <20170830004702.120371-1-sherryy@android.com>
Add the number of active, lru, and free pages for
each binder process in binder stats
Signed-off-by: Sherry Yang <sherryy@android.com>
---
drivers/android/binder.c | 2 ++
drivers/android/binder_alloc.c | 28 ++++++++++++++++++++++++++++
drivers/android/binder_alloc.h | 2 ++
3 files changed, 32 insertions(+)
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index fc5a4b9f3d97..7210e0dba3ef 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -5047,6 +5047,8 @@ static void print_binder_proc_stats(struct seq_file *m,
count = binder_alloc_get_allocated_count(&proc->alloc);
seq_printf(m, " buffers: %d\n", count);
+ binder_alloc_print_pages(m, &proc->alloc);
+
count = 0;
binder_inner_proc_lock(proc);
list_for_each_entry(w, &proc->todo, entry) {
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 2624a502fcde..8fe165844e47 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -831,6 +831,34 @@ void binder_alloc_print_allocated(struct seq_file *m,
mutex_unlock(&alloc->mutex);
}
+/**
+ * binder_alloc_print_pages() - print page usage
+ * @m: seq_file for output via seq_printf()
+ * @alloc: binder_alloc for this proc
+ */
+void binder_alloc_print_pages(struct seq_file *m,
+ struct binder_alloc *alloc)
+{
+ struct binder_lru_page *page;
+ int i;
+ int active = 0;
+ int lru = 0;
+ int free = 0;
+
+ mutex_lock(&alloc->mutex);
+ for (i = 0; i < alloc->buffer_size / PAGE_SIZE; i++) {
+ page = &alloc->pages[i];
+ if (!page->page_ptr)
+ free++;
+ else if (list_empty(&page->lru))
+ active++;
+ else
+ lru++;
+ }
+ mutex_unlock(&alloc->mutex);
+ seq_printf(m, " pages: %d:%d:%d\n", active, lru, free);
+}
+
/**
* binder_alloc_get_allocated_count() - return count of buffers
* @alloc: binder_alloc for this proc
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h
index fa707cc63393..a3a3602c689c 100644
--- a/drivers/android/binder_alloc.h
+++ b/drivers/android/binder_alloc.h
@@ -142,6 +142,8 @@ extern void binder_alloc_deferred_release(struct binder_alloc *alloc);
extern int binder_alloc_get_allocated_count(struct binder_alloc *alloc);
extern void binder_alloc_print_allocated(struct seq_file *m,
struct binder_alloc *alloc);
+void binder_alloc_print_pages(struct seq_file *m,
+ struct binder_alloc *alloc);
/**
* binder_alloc_get_free_async_space() - get free space available for async
--
2.14.1.342.g6490525c54-goog
prev parent reply other threads:[~2017-08-30 0:47 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 0:46 [PATCH 0/6] android: binder: move allocator metadata and add shrinker Sherry Yang
2017-08-30 0:46 ` [PATCH v3 1/6] android: binder: Refactor prev and next buffer into a helper function Sherry Yang
2017-08-30 6:07 ` Greg Kroah-Hartman
2017-08-30 19:46 ` Sherry Yang
2017-08-30 20:08 ` Dan Carpenter
2017-08-31 4:28 ` Greg Kroah-Hartman
2017-08-31 17:26 ` [PATCH] android: binder: fixup crash introduced by moving buffer hdr Sherry Yang
2017-09-01 6:52 ` Greg KH
2017-08-31 17:30 ` [PATCH v3 1/6] android: binder: Refactor prev and next buffer into a helper function Sherry Yang
2017-08-31 18:47 ` Greg Kroah-Hartman
2017-08-31 18:56 ` [PATCH] android: binder: Add page usage in binder stats Sherry Yang
2017-08-30 0:46 ` [PATCH v3 2/6] android: binder: Add allocator selftest Sherry Yang
2017-08-30 0:46 ` [PATCH v3 3/6] android: binder: Move buffer out of area shared with user space Sherry Yang
2017-08-30 9:29 ` Dan Carpenter
2017-08-30 20:04 ` Arve Hjønnevåg
2017-08-30 20:20 ` Dan Carpenter
2017-08-30 21:03 ` Todd Kjos
2017-08-30 0:47 ` [PATCH v3 4/6] android: binder: Add global lru shrinker to binder Sherry Yang
2017-08-30 0:47 ` [PATCH v3 5/6] android: binder: Add shrinker tracepoints Sherry Yang
2017-08-30 0:47 ` Sherry Yang [this message]
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