From: SeongJae Park <sj38.park@gmail.com>
To: akpm@linux-foundation.org
Cc: SeongJae Park <sjpark@amazon.de>,
Jonathan.Cameron@Huawei.com, acme@kernel.org,
alexander.shishkin@linux.intel.com, amit@kernel.org,
benh@kernel.crashing.org, brendanhiggins@google.com,
corbet@lwn.net, david@redhat.com, dwmw@amazon.com,
elver@google.com, fan.du@intel.com, foersleo@amazon.de,
greg@kroah.com, gthelen@google.com, guoju.fgj@alibaba-inc.com,
jgowans@amazon.com, joe@perches.com, mgorman@suse.de,
mheyne@amazon.de, minchan@kernel.org, mingo@redhat.com,
namhyung@kernel.org, peterz@infradead.org, riel@surriel.com,
rientjes@google.com, rostedt@goodmis.org, rppt@kernel.org,
shakeelb@google.com, shuah@kernel.org, sieberf@amazon.com,
sj38.park@gmail.com, snu@zelle79.org, vbabka@suse.cz,
vdavydov.dev@gmail.com, zgf574564920@gmail.com,
linux-damon@amazon.com, linux-mm@kvack.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RFC v3 09/15] mm/damon/dbgfs: Support prioritization weights
Date: Tue, 20 Jul 2021 13:13:03 +0000 [thread overview]
Message-ID: <20210720131309.22073-10-sj38.park@gmail.com> (raw)
In-Reply-To: <20210720131309.22073-1-sj38.park@gmail.com>
From: SeongJae Park <sjpark@amazon.de>
This commit allows DAMON debugfs interface users set the prioritization
weights by putting three more numbers to the 'schemes' file.
Signed-off-by: SeongJae Park <sjpark@amazon.de>
---
mm/damon/dbgfs.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 3cd253a07116..93ac15cb5786 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -227,13 +227,16 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
damon_for_each_scheme(s, c) {
rc = scnprintf(&buf[written], len - written,
- "%lu %lu %u %u %u %u %d %lu %lu %lu %lu %lu\n",
+ "%lu %lu %u %u %u %u %d %lu %lu %lu %u %u %u %lu %lu\n",
s->min_sz_region, s->max_sz_region,
s->min_nr_accesses, s->max_nr_accesses,
s->min_age_region, s->max_age_region,
s->action,
s->quota.ms, s->quota.sz,
s->quota.reset_interval,
+ s->quota.weight_sz,
+ s->quota.weight_nr_accesses,
+ s->quota.weight_age,
s->stat_count, s->stat_sz);
if (!rc)
return -ENOMEM;
@@ -315,11 +318,14 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
while (pos < len && *nr_schemes < max_nr_schemes) {
struct damos_quota quota = {};
- ret = sscanf(&str[pos], "%lu %lu %u %u %u %u %u %lu %lu %lu%n",
+ ret = sscanf(&str[pos],
+ "%lu %lu %u %u %u %u %u %lu %lu %lu %u %u %u%n",
&min_sz, &max_sz, &min_nr_a, &max_nr_a,
&min_age, &max_age, &action, "a.ms,
- "a.sz, "a.reset_interval, &parsed);
- if (ret != 10)
+ "a.sz, "a.reset_interval,
+ "a.weight_sz, "a.weight_nr_accesses,
+ "a.weight_age, &parsed);
+ if (ret != 13)
break;
if (!damos_action_valid(action)) {
pr_err("wrong action %d\n", action);
@@ -1147,7 +1153,7 @@ static ssize_t dbgfs_monitor_on_write(struct file *file,
static ssize_t dbgfs_version_read(struct file *file,
char __user *buf, size_t count, loff_t *ppos)
{
- return simple_read_from_buffer(buf, count, ppos, "1\n", 2);
+ return simple_read_from_buffer(buf, count, ppos, "2\n", 2);
}
static const struct file_operations mk_contexts_fops = {
--
2.17.1
next prev parent reply other threads:[~2021-07-20 13:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-20 13:12 [RFC v3 00/15] Introduce DAMON-based Proactive Reclamation SeongJae Park
2021-07-20 13:12 ` [RFC v3 01/15] mm/damon/paddr: Support the pageout scheme SeongJae Park
2021-07-20 13:12 ` [RFC v3 02/15] mm/damon/damos: Make schemes aggressiveness controllable SeongJae Park
2021-07-20 13:12 ` [RFC v3 03/15] damon/core/schemes: Skip already charged targets and regions SeongJae Park
2021-07-20 13:12 ` [RFC v3 04/15] mm/damon/schemes: Implement time quota SeongJae Park
2021-07-20 13:12 ` [RFC v3 05/15] mm/damon/dbgfs: Support schemes' time/IO quotas SeongJae Park
2021-07-20 13:13 ` [RFC v3 06/15] mm/damon/selftests: Support schemes quotas SeongJae Park
2021-07-20 13:13 ` [RFC v3 07/15] mm/damon/schemes: Prioritize regions within the quotas SeongJae Park
2021-07-20 13:13 ` [RFC v3 08/15] mm/damon/vaddr,paddr: Support pageout prioritization SeongJae Park
2021-07-20 13:13 ` SeongJae Park [this message]
2021-07-20 13:13 ` [RFC v3 10/15] tools/selftests/damon: Update for regions prioritization of schemes SeongJae Park
2021-07-20 13:13 ` [RFC v3 11/15] mm/damon/schemes: Activate schemes based on a watermarks mechanism SeongJae Park
2021-07-20 13:13 ` [RFC v3 12/15] mm/damon/dbgfs: Support watermarks SeongJae Park
2021-07-20 13:13 ` [RFC v3 13/15] selftests/damon: " SeongJae Park
2021-07-20 13:13 ` [RFC v3 14/15] mm/damon: Introduce DAMON-based reclamation SeongJae Park
2021-07-20 13:13 ` [RFC v3 15/15] Documentation/admin-guide/mm/damon: Add a document for DAMON_RECLAIM SeongJae Park
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