From: Suren Baghdasaryan <surenb@google.com>
To: akpm@linux-foundation.org
Cc: kent.overstreet@linux.dev, mhocko@suse.com, vbabka@suse.cz,
hannes@cmpxchg.org, roman.gushchin@linux.dev, mgorman@suse.de,
dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com,
corbet@lwn.net, void@manifault.com, peterz@infradead.org,
juri.lelli@redhat.com, ldufour@linux.ibm.com,
catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de,
tglx@linutronix.de, mingo@redhat.com,
dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com,
david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org,
masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org,
tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org,
paulmck@kernel.org, pasha.tatashin@soleen.com,
yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com,
hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org,
ndesaulniers@google.com, gregkh@linuxfoundation.org,
ebiggers@google.com, ytcoode@gmail.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com,
vschneid@redhat.com, cl@linux.com, penberg@kernel.org,
iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com,
elver@google.com, dvyukov@google.com, shakeelb@google.com,
songmuchun@bytedance.com, jbaron@akamai.com, rientjes@google.com,
minchan@google.com, kaleshsingh@google.com, surenb@google.com,
kernel-team@android.com, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, iommu@lists.linux.dev,
linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-modules@vger.kernel.org,
kasan-dev@googlegroups.com, cgroups@vger.kernel.org
Subject: [PATCH 36/40] lib: add memory allocations report in show_mem()
Date: Mon, 1 May 2023 09:54:46 -0700 [thread overview]
Message-ID: <20230501165450.15352-37-surenb@google.com> (raw)
In-Reply-To: <20230501165450.15352-1-surenb@google.com>
Include allocations in show_mem reports.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
---
include/linux/alloc_tag.h | 2 ++
lib/alloc_tag.c | 48 +++++++++++++++++++++++++++++++++++----
lib/show_mem.c | 15 ++++++++++++
3 files changed, 60 insertions(+), 5 deletions(-)
diff --git a/include/linux/alloc_tag.h b/include/linux/alloc_tag.h
index 2a3d248aae10..190ab793f7e5 100644
--- a/include/linux/alloc_tag.h
+++ b/include/linux/alloc_tag.h
@@ -23,6 +23,8 @@ struct alloc_tag {
#ifdef CONFIG_MEM_ALLOC_PROFILING
+void alloc_tags_show_mem_report(struct seq_buf *s);
+
static inline struct alloc_tag *ctc_to_alloc_tag(struct codetag_with_ctx *ctc)
{
return container_of(ctc, struct alloc_tag, ctc);
diff --git a/lib/alloc_tag.c b/lib/alloc_tag.c
index 675c7a08e38b..e2ebab8999a9 100644
--- a/lib/alloc_tag.c
+++ b/lib/alloc_tag.c
@@ -13,6 +13,8 @@
#define STACK_BUF_SIZE 1024
+static struct codetag_type *alloc_tag_cttype;
+
DEFINE_STATIC_KEY_TRUE(mem_alloc_profiling_key);
/*
@@ -133,6 +135,43 @@ static ssize_t allocations_file_read(struct file *file, char __user *ubuf,
return err ? : buf.ret;
}
+void alloc_tags_show_mem_report(struct seq_buf *s)
+{
+ struct codetag_iterator iter;
+ struct codetag *ct;
+ struct {
+ struct codetag *tag;
+ size_t bytes;
+ } tags[10], n;
+ unsigned int i, nr = 0;
+
+ codetag_init_iter(&iter, alloc_tag_cttype);
+
+ codetag_lock_module_list(alloc_tag_cttype, true);
+ while ((ct = codetag_next_ct(&iter))) {
+ n.tag = ct;
+ n.bytes = lazy_percpu_counter_read(&ct_to_alloc_tag(ct)->bytes_allocated);
+
+ for (i = 0; i < nr; i++)
+ if (n.bytes > tags[i].bytes)
+ break;
+
+ if (i < ARRAY_SIZE(tags)) {
+ nr -= nr == ARRAY_SIZE(tags);
+ memmove(&tags[i + 1],
+ &tags[i],
+ sizeof(tags[0]) * (nr - i));
+ nr++;
+ tags[i] = n;
+ }
+ }
+
+ for (i = 0; i < nr; i++)
+ alloc_tag_to_text(s, tags[i].tag);
+
+ codetag_lock_module_list(alloc_tag_cttype, false);
+}
+
static const struct file_operations allocations_file_ops = {
.owner = THIS_MODULE,
.open = allocations_file_open,
@@ -409,7 +448,6 @@ EXPORT_SYMBOL(page_alloc_tagging_ops);
static int __init alloc_tag_init(void)
{
- struct codetag_type *cttype;
const struct codetag_type_desc desc = {
.section = "alloc_tags",
.tag_size = sizeof(struct alloc_tag),
@@ -417,10 +455,10 @@ static int __init alloc_tag_init(void)
.free_ctx = alloc_tag_ops_free_ctx,
};
- cttype = codetag_register_type(&desc);
- if (IS_ERR_OR_NULL(cttype))
- return PTR_ERR(cttype);
+ alloc_tag_cttype = codetag_register_type(&desc);
+ if (IS_ERR_OR_NULL(alloc_tag_cttype))
+ return PTR_ERR(alloc_tag_cttype);
- return dbgfs_init(cttype);
+ return dbgfs_init(alloc_tag_cttype);
}
module_init(alloc_tag_init);
diff --git a/lib/show_mem.c b/lib/show_mem.c
index 1485c87be935..5c82f29168e3 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -7,6 +7,7 @@
#include <linux/mm.h>
#include <linux/cma.h>
+#include <linux/seq_buf.h>
void __show_mem(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
{
@@ -34,4 +35,18 @@ void __show_mem(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
#ifdef CONFIG_MEMORY_FAILURE
printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
#endif
+#ifdef CONFIG_MEM_ALLOC_PROFILING
+ {
+ struct seq_buf s;
+ char *buf = kmalloc(4096, GFP_ATOMIC);
+
+ if (buf) {
+ printk("Memory allocations:\n");
+ seq_buf_init(&s, buf, 4096);
+ alloc_tags_show_mem_report(&s);
+ printk("%s", buf);
+ kfree(buf);
+ }
+ }
+#endif
}
--
2.40.1.495.gc816e09b53d-goog
next prev parent reply other threads:[~2023-05-01 17:03 UTC|newest]
Thread overview: 160+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 16:54 [PATCH 00/40] Memory allocation profiling Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 01/40] lib/string_helpers: Drop space in string_get_size's output Suren Baghdasaryan
2023-05-01 18:13 ` Davidlohr Bueso
2023-05-01 19:35 ` Kent Overstreet
2023-05-01 19:57 ` Andy Shevchenko
2023-05-01 21:16 ` Kent Overstreet
2023-05-01 21:33 ` Liam R. Howlett
2023-05-02 0:11 ` Kent Overstreet
2023-05-02 0:53 ` Kent Overstreet
2023-05-02 2:22 ` James Bottomley
2023-05-02 3:17 ` Kent Overstreet
2023-05-02 5:33 ` Andy Shevchenko
2023-05-02 6:21 ` Kent Overstreet
2023-05-02 15:19 ` Andy Shevchenko
2023-05-03 2:07 ` Kent Overstreet
2023-05-03 6:30 ` Andy Shevchenko
2023-05-03 7:12 ` Kent Overstreet
2023-05-03 9:12 ` Andy Shevchenko
2023-05-03 9:16 ` Kent Overstreet
2023-05-02 11:42 ` James Bottomley
2023-05-02 22:50 ` Dave Chinner
2023-05-03 9:28 ` Vlastimil Babka
2023-05-03 9:44 ` Andy Shevchenko
2023-05-03 12:15 ` James Bottomley
2023-05-02 7:55 ` Jani Nikula
2023-05-01 16:54 ` [PATCH 02/40] scripts/kallysms: Always include __start and __stop symbols Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 03/40] fs: Convert alloc_inode_sb() to a macro Suren Baghdasaryan
2023-05-02 12:35 ` Petr Tesařík
2023-05-02 19:57 ` Kent Overstreet
2023-05-02 20:20 ` Petr Tesařík
2023-05-01 16:54 ` [PATCH 04/40] nodemask: Split out include/linux/nodemask_types.h Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 05/40] prandom: Remove unused include Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 06/40] lib/string.c: strsep_no_empty() Suren Baghdasaryan
2023-05-02 12:37 ` Petr Tesařík
2023-05-01 16:54 ` [PATCH 07/40] Lazy percpu counters Suren Baghdasaryan
2023-05-01 19:17 ` Randy Dunlap
2023-05-01 16:54 ` [PATCH 08/40] mm: introduce slabobj_ext to support slab object extensions Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 09/40] mm: introduce __GFP_NO_OBJ_EXT flag to selectively prevent slabobj_ext creation Suren Baghdasaryan
2023-05-02 12:50 ` Petr Tesařík
2023-05-02 18:33 ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 10/40] mm/slab: introduce SLAB_NO_OBJ_EXT to avoid obj_ext creation Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 11/40] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 12/40] slab: objext: introduce objext_flags as extension to page_memcg_data_flags Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 13/40] lib: code tagging framework Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 14/40] lib: code tagging module support Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 15/40] lib: prevent module unloading if memory is not freed Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 16/40] lib: code tagging query helper functions Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 17/40] lib: add allocation tagging support for memory allocation profiling Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 18/40] lib: introduce support for page allocation tagging Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 19/40] change alloc_pages name in dma_map_ops to avoid name conflicts Suren Baghdasaryan
2023-05-02 15:50 ` Petr Tesařík
2023-05-02 18:38 ` Suren Baghdasaryan
2023-05-02 20:09 ` Petr Tesařík
2023-05-02 20:18 ` Kent Overstreet
2023-05-02 20:24 ` Suren Baghdasaryan
2023-05-02 20:39 ` Petr Tesařík
2023-05-02 20:41 ` Suren Baghdasaryan
2023-05-03 16:25 ` Steven Rostedt
2023-05-03 18:03 ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 20/40] mm: enable page allocation tagging Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 21/40] mm/page_ext: enable early_page_ext when CONFIG_MEM_ALLOC_PROFILING_DEBUG=y Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 22/40] mm: create new codetag references during page splitting Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 23/40] lib: add codetag reference into slabobj_ext Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 24/40] mm/slab: add allocation accounting into slab allocation and free paths Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 25/40] mm/slab: enable slab allocation tagging for kmalloc and friends Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 26/40] mm/slub: Mark slab_free_freelist_hook() __always_inline Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 27/40] mempool: Hook up to memory allocation profiling Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 28/40] timekeeping: Fix a circular include dependency Suren Baghdasaryan
2023-05-02 15:50 ` Thomas Gleixner
2023-05-01 16:54 ` [PATCH 29/40] mm: percpu: Introduce pcpuobj_ext Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 30/40] mm: percpu: Add codetag reference into pcpuobj_ext Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 31/40] mm: percpu: enable per-cpu allocation tagging Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 32/40] arm64: Fix circular header dependency Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 33/40] move stack capture functionality into a separate function for reuse Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 34/40] lib: code tagging context capture support Suren Baghdasaryan
2023-05-03 7:35 ` Michal Hocko
2023-05-03 15:18 ` Suren Baghdasaryan
2023-05-03 15:26 ` Dave Hansen
2023-05-03 19:45 ` Suren Baghdasaryan
2023-05-04 8:04 ` Michal Hocko
2023-05-04 14:31 ` Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 35/40] lib: implement context capture support for tagged allocations Suren Baghdasaryan
2023-05-03 7:39 ` Michal Hocko
2023-05-03 15:24 ` Suren Baghdasaryan
2023-05-04 8:09 ` Michal Hocko
2023-05-04 16:22 ` Suren Baghdasaryan
2023-05-05 8:40 ` Michal Hocko
2023-05-05 18:10 ` Suren Baghdasaryan
2023-05-01 16:54 ` Suren Baghdasaryan [this message]
2023-05-01 16:54 ` [PATCH 37/40] codetag: debug: skip objext checking when it's for objext itself Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 38/40] codetag: debug: mark codetags for reserved pages as empty Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 39/40] codetag: debug: introduce OBJEXTS_ALLOC_FAIL to mark failed slab_ext allocations Suren Baghdasaryan
2023-05-01 16:54 ` [PATCH 40/40] MAINTAINERS: Add entries for code tagging and memory allocation profiling Suren Baghdasaryan
2023-05-01 17:47 ` [PATCH 00/40] Memory " Roman Gushchin
2023-05-01 18:08 ` Suren Baghdasaryan
2023-05-01 18:14 ` Roman Gushchin
2023-05-01 19:37 ` Kent Overstreet
2023-05-01 21:18 ` Roman Gushchin
2023-05-03 7:25 ` Michal Hocko
2023-05-03 7:34 ` Kent Overstreet
2023-05-03 7:51 ` Michal Hocko
2023-05-03 8:05 ` Kent Overstreet
2023-05-03 13:21 ` Steven Rostedt
2023-05-03 16:35 ` Tejun Heo
2023-05-03 17:42 ` Suren Baghdasaryan
2023-05-03 18:06 ` Tejun Heo
2023-05-03 17:44 ` Kent Overstreet
2023-05-03 17:51 ` Kent Overstreet
2023-05-03 18:24 ` Tejun Heo
2023-05-03 18:07 ` Johannes Weiner
2023-05-03 18:19 ` Tejun Heo
2023-05-03 18:40 ` Tejun Heo
2023-05-03 18:56 ` Kent Overstreet
2023-05-03 18:58 ` Tejun Heo
2023-05-03 19:09 ` Tejun Heo
2023-05-03 19:41 ` Suren Baghdasaryan
2023-05-03 19:48 ` Tejun Heo
2023-05-03 20:00 ` Tejun Heo
2023-05-03 20:14 ` Suren Baghdasaryan
2023-05-04 2:25 ` Tejun Heo
2023-05-04 3:33 ` Kent Overstreet
2023-05-04 3:33 ` Suren Baghdasaryan
2023-05-04 8:00 ` Petr Tesařík
2023-05-03 20:08 ` Suren Baghdasaryan
2023-05-03 20:11 ` Johannes Weiner
2023-05-04 2:16 ` Tejun Heo
2023-05-03 20:04 ` Andrey Ryabinin
2023-05-03 9:50 ` Petr Tesařík
2023-05-03 9:54 ` Kent Overstreet
2023-05-03 10:24 ` Petr Tesařík
2023-05-03 9:57 ` Kent Overstreet
2023-05-03 10:26 ` Petr Tesařík
2023-05-03 15:30 ` Kent Overstreet
2023-05-03 12:33 ` James Bottomley
2023-05-03 14:31 ` Suren Baghdasaryan
2023-05-03 15:28 ` Kent Overstreet
2023-05-03 15:37 ` Lorenzo Stoakes
2023-05-03 16:03 ` Kent Overstreet
2023-05-03 15:49 ` James Bottomley
2023-05-03 15:09 ` Suren Baghdasaryan
2023-05-03 16:28 ` Steven Rostedt
2023-05-03 17:40 ` Suren Baghdasaryan
2023-05-03 18:03 ` Steven Rostedt
2023-05-03 18:07 ` Suren Baghdasaryan
2023-05-03 18:12 ` Kent Overstreet
2023-05-04 9:07 ` Michal Hocko
2023-05-04 15:08 ` Suren Baghdasaryan
2023-05-07 10:27 ` Michal Hocko
2023-05-07 17:01 ` Kent Overstreet
2023-05-07 17:20 ` Kent Overstreet
2023-05-07 20:55 ` Steven Rostedt
2023-05-07 21:53 ` Kent Overstreet
2023-05-07 22:09 ` Steven Rostedt
2023-05-07 22:17 ` Kent Overstreet
2023-05-08 15:52 ` Petr Tesařík
2023-05-08 15:57 ` Kent Overstreet
2023-05-08 16:09 ` Petr Tesařík
2023-05-08 16:28 ` Kent Overstreet
2023-05-08 18:59 ` Petr Tesařík
2023-05-08 20:48 ` Kent Overstreet
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230501165450.15352-37-surenb@google.com \
--to=surenb@google.com \
--cc=42.hyeyoo@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=andreyknvl@gmail.com \
--cc=arnd@arndb.de \
--cc=axboe@kernel.dk \
--cc=bristot@redhat.com \
--cc=bsegall@google.com \
--cc=catalin.marinas@arm.com \
--cc=cgroups@vger.kernel.org \
--cc=cl@linux.com \
--cc=corbet@lwn.net \
--cc=dave.hansen@linux.intel.com \
--cc=dave@stgolabs.net \
--cc=david@redhat.com \
--cc=dennis@kernel.org \
--cc=dhowells@redhat.com \
--cc=dietmar.eggemann@arm.com \
--cc=dvyukov@google.com \
--cc=ebiggers@google.com \
--cc=elver@google.com \
--cc=glider@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=hannes@cmpxchg.org \
--cc=hughd@google.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=iommu@lists.linux.dev \
--cc=jbaron@akamai.com \
--cc=juri.lelli@redhat.com \
--cc=kaleshsingh@google.com \
--cc=kasan-dev@googlegroups.com \
--cc=keescook@chromium.org \
--cc=kent.overstreet@linux.dev \
--cc=kernel-team@android.com \
--cc=ldufour@linux.ibm.com \
--cc=liam.howlett@oracle.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-modules@vger.kernel.org \
--cc=masahiroy@kernel.org \
--cc=mcgrof@kernel.org \
--cc=mgorman@suse.de \
--cc=mhocko@suse.com \
--cc=minchan@google.com \
--cc=mingo@redhat.com \
--cc=muchun.song@linux.dev \
--cc=nathan@kernel.org \
--cc=ndesaulniers@google.com \
--cc=pasha.tatashin@soleen.com \
--cc=paulmck@kernel.org \
--cc=penberg@kernel.org \
--cc=peterx@redhat.com \
--cc=peterz@infradead.org \
--cc=rientjes@google.com \
--cc=roman.gushchin@linux.dev \
--cc=rostedt@goodmis.org \
--cc=rppt@kernel.org \
--cc=shakeelb@google.com \
--cc=songmuchun@bytedance.com \
--cc=tglx@linutronix.de \
--cc=tj@kernel.org \
--cc=vbabka@suse.cz \
--cc=vincent.guittot@linaro.org \
--cc=void@manifault.com \
--cc=vschneid@redhat.com \
--cc=will@kernel.org \
--cc=willy@infradead.org \
--cc=x86@kernel.org \
--cc=yosryahmed@google.com \
--cc=ytcoode@gmail.com \
--cc=yuzhao@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).