sat (@EnSatoru) profile picture

sat

@EnSatoru

Rook(maintainer)/TopoLVM(maintainer)/Ceph/Kubernetes/Linux kernel https://nitter.cf/t.co/rD7wBuMfhD

dev.to/satorutakeuchi
Joined November 2019
  • Tweets430
  • Following19
  • Followers734
11Media
Photo by sat (@EnSatoru)Photo by sat (@EnSatoru)Photo by sat (@EnSatoru)Photo by sat (@EnSatoru)Photo by sat (@EnSatoru)Photo by sat (@EnSatoru)
Dan, Deepika, and I will have a Rook maintainer session at KubeCon+CloudnativeCon Japan tomorrow. events.linuxfoundation.org/k…
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well done.
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sat retweeted
Ceph (@Ceph) profile picture
Ceph@CephJul 30
Ceph Developer Summit: Vampire kicks off Aug 4! Nine sessions, two weeks, one goal — shaping Vampire, the next major #Ceph release. #RADOS, #RBD, #RGW, #CephFS, #Dashboard, and more. 🐙 🧛‍♂️ Open to #CephDevs, #CephUsers, and the curious. Schedule + links: t.ly/CDS-Vampire
Image from Ceph (@Ceph)
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I'll have a presentation at KubeCon Japan with other Rook developers and power users. events.linuxfoundation.org/k…
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Ceph v20.2.0 is out. I'm looking forward to evaluating this version. Especially the following improvements. - Reduce the write I/O blocking time during bucket resharding. - Fast omap iteration.
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sat retweeted
Ceph (@Ceph) profile picture
Ceph@Ceph18 Jul 2025
🎨 Got design skills? Show them off! Submit your art for the Cephalocon 2025 T-Shirt Contest & get global bragging rights, plus free event registration. 🗓️ Deadline: Aug 1 🎟️ Info + entry: ceph.io/en/news/blog/2025/ce… #Cephalocon #CephCommunity
Image from Ceph (@Ceph)
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I'll have a Rook maintainer session at KubeCon+CloudNativeCon Japan kccncjpn2025.sched.com/event…
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My session youtube.com/watch?v=LmL2wyMW…
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slides speakerdeck.com/sat/rook-int…

Rook: Intro and Deep Dive With Ceph

The slides of the following session at KubeCon+CloudNativeCon Japan 2025 https://kccncjpn2025.sched.com/event/1x6zk/rook-intro-and-deep-dive-with-cep…

speakerdeck.com
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I will give a Rook's maintainer session at KubeCon Japan 2025 kccncjpn2025.sched.com/event…
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Recent Ceph Mond and OSDs stores the creation time(created_at) and the Ceph version on creation(ceph_version_when_created) in their metadata. This feature is helpful on debugging. github.com/ceph/ceph/pull/53…
mon: add created_at and ceph_version_when_created meta by ushitora-anqou · Pull Request #53858 ·...

mon: add created_at and ceph_version_when_created meta by ushitora-anqou · Pull Request #53858 ·...

Fixes: https://tracker.ceph.com/issues/57515 Signed-off-by: Ryotaro Banno [email protected] This patch adds the following metadata to MONs: created_at: the UTC time when the MON was created;...

github.com
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Published an article about linux kernel's process scheduler. This article explains the concept of context swtitches and the effect of the number of CPU cores to system performance. dev.to/satorutakeuchi/how-li…
How Linux Works: Chapter 3 Process Scheduler (Part 3)

How Linux Works: Chapter 3 Process Scheduler (Part 3)

linux, scheduler

dev.to
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I'm very happy to hear Ceph v18.2.4 was released.
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I published an article which visualize the behavior of Linux's process scheduler. I believe you can understand the concept of "timeslice" in detail. dev.to/satorutakeuchi/how-li…
How Linux Works: Chapter 3 Process Scheduler (Part 2)

How Linux Works: Chapter 3 Process Scheduler (Part 2)

linux, scheduler

dev.to
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Great ceph.io/en/news/blog/2023/v1…

v18.2.0 Reef released - Ceph

ceph.io
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Check out this new All-Flash Ceph Deployment Guide written by @MarkHPC linkedin.com/feed/update/urn…
Hello Ceph community! Here at Clyso we’ve been thinking quite a bit about… | CLYSO

Hello Ceph community! Here at Clyso we’ve been thinking quite a bit about… | CLYSO

Hello Ceph community! Here at Clyso we’ve been thinking quite a bit about the tuning defaults and hardware/software recommendations we will be making for users of our upcoming Clyso Enterprise...

linkedin.com
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I published an article that describe the process management of Linux kernel dev.to/satorutakeuchi/how-li…
How Linux Works: Chapter2 Process Management (Part2)

How Linux Works: Chapter2 Process Management (Part2)

The Relationship between Parent Process and Child Process In the previous section, we...

dev.to
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Part3 is now also available. It's the end of chaprter 2. dev.to/satorutakeuchi/how-li…
How Linux Works: Chapter2 Process Management (Part3)

How Linux Works: Chapter2 Process Management (Part3)

Job control in Shell In this section, we will explain the concepts of sessions and process...

dev.to
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I publish an article about the process scheduler of Linux. dev.to/satorutakeuchi/how-li…
How Linux Works: Chapter 3 Process Scheduler (Part 1)

How Linux Works: Chapter 3 Process Scheduler (Part 1)

In Chapter 2, we mentioned that most processes in the system are in the sleep state. So, how does the...

dev.to
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