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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Jonathan Corbet , Neal Cardwell , David Ahern , Andrew Morton , Yosry Ahmed , linux-mm@kvack.org, netdev@vger.kernel.org, Johannes Weiner , Michal Hocko , Roman Gushchin , Muchun Song , cgroups@vger.kernel.org, Matyas Hurtik References: <4g63mbix4aut7ye7b7s4m5q7aewfxq542i2vygniow7l5a3zmd@bvis5wmifscy> <878ca484-a045-4abb-a5bd-7d5ae82607de@cdn77.com> <486bfabc-386c-4fdc-8903-d56ce207951f@cdn77.com> Content-Language: en-US From: Daniel Sedlak In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CTCH: RefID="str=0001.0A002110.68875ED5.0034,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0"; Spam="Unknown"; VOD="Unknown" X-Rspam-User: X-Rspamd-Queue-Id: 98DAE12000B X-Rspamd-Server: rspam06 X-Stat-Signature: 1wxbesbzoiyh1skwh8ofyta85fnjhq4x X-HE-Tag: 1753702174-534988 X-HE-Meta: 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 wmvcX2+4 6eXv1vR89nFzXRrI3CACHsRGCXvtH5XYZdViTR2CgFfeSFHX59T/m8YgeEpzQgQv7faKJURznaR5M4+7ihdSRnuj9diq6XPgFOwfBEW3Itfbi+8hcrKOVkRvWhbTScq1TliS92LYc/ZE4Rnep03NKrVpsgqNIN+kvUvpx775ob73T9yzPpGkaQk+y5LntBFQv6HvQ0lQO4ZdK5RbzAgqM0v3N/w== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 7/25/25 2:44 AM, Tejun Heo wrote: > On Thu, Jul 24, 2025 at 10:43:27AM +0200, Daniel Sedlak wrote: > ... >> Currently, we know the following information: >> >> - we know when the pressure starts >> - and we know when the pressure ends if not rearmed (start time + HZ) >> >> From that, we should be able to calculate a similar triplet to the pressure >> endpoints in the cgroups (cpu|io|memory|irq).pressure. That is, how much % >> of time on average was spent under pressure for avg10, avg60, avg300 i.e. >> average pressure over the past 10 seconds, 60 seconds, and 300 seconds, >> respectively. (+ total time spent under pressure) > > Let's just add the cumulative duration that socket pressure was present. > > Thanks. > Ok, I will send it as v4, if no other objections are made. In which units the duration should be? Milliseconds? It can also be microseconds, which are now used in (cpu|io|memory|irq).pressure files. Thanks! Daniel