EBUT Laboratory https://ebutlab.com Emotional, Burning, Unlimited Tuned Laboratory Thu, 15 May 2025 09:18:35 +0000 ja hourly 1 https://wordpress.org/?v=6.8.1 https://ebutlab.com/wp-content/uploads/2016/01/cropped-logo-2x-100x100.png EBUT Laboratory https://ebutlab.com 32 32 179778457 php-fpm: pm = static & pm.max_children = 2 on lower machines https://ebutlab.com/blog/2025/05/15/php-fpm-pm-static-pm-max_children-2-on-lower-machines/ Wed, 14 May 2025 21:27:30 +0000 https://ebutlab.com/?p=23101 続きを読む]]> Ref: php-fpm の設定を理解してサイトのパフォーマンスを向上させる

static と dynamic どちらを選択すれば良いのか

dynamic のほうが柔軟に処理能力を調整することができるので、より良いようにも思えます。しかし、プロセスはリクエストの処理中CPU1コアを占有するので、同時処理可能なリクエスト数はCPUの論理コア数に依存します。(コア数以上にプロセスを起動しても、使い切れないことが多いです)それに対して、1プロセスあたりのメモリ消費量は100MBを超えることはほぼありません。したがって、一般的なサーバーの場合メモリやディスクの限界に達する前にCPUがボトルネックとなるので、あまり多くの数プロセスを起動しても意味がありません。
それならば、プロセスの動的な起動に伴うオーバーヘッドがないstaticを選択するほうが良い場合も多いです。

プロセスの最大起動数は、最もボトルネックとなっているリソースに合わせて決定します。
CPUは1プロセスあたり1コア、メモリは1プロセスあたり数十MBとして計算します。(正確な1プロセスあたりのメモリ使用量は、サーバーごとに異なるのでpsコマンドを使って調べてください。)

今回の例では、CPUがボトルネックなのは明らかなので、コア数と同じ2を設定します。※1
また、今回は同時起動数が少ないので、プロセス制御はstaticを使用します。
pm = static
pm.max_children = 2

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Special exhibition: “80 Years After the War and 100 Years of Showa: Reading Press Photos from ‘100 Million People’s Showa History’ to the ‘Mainichi Wartime Photo Archive'” https://ebutlab.com/blog/2025/05/13/special-exhibition-80-years-after-the-war-and-100-years-of-showa-reading-press-photos-from-100-million-peoples-showa-history-to-the-mainichi-wartime-photo-archive/ Tue, 13 May 2025 13:05:15 +0000 https://ebutlab.com/?p=23066

The Mainichi Shimbun Company has approximately 60,000 negatives taken by over 600 overseas correspondents from the Sino-Japanese War to the Pacific War. Starting in 2022, we have been digitally archiving these images, and have been working with the University of Tokyo and Kyoto University to decipher the background and consider ways to convey this information to future generations.
In this exhibition, you will be able to see clear images of the realities of the war taken by Mainichi Shimbun correspondents, as well as experience digital content developed through joint research. As the number of generations who directly experienced the war is decreasing, we have been working with university and graduate students to come up with a system that can help the younger generation think about war as something that concerns them personally
through these materials. This year marks the 100th anniversary of the Showa era. War, defeat, reconstruction, high economic growth, the bubble economy, disasters, epidemics…newspaper photographs have captured the images of people. What is war, and how should we deal with information? We would be pleased if you could view the exhibition as a question of the present.

*We are planning various events. We will announce the details on this page once they are decided.

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Beyond the Headlines – Understanding the deeper aspects of the Gaza crisis through data, media and technology – https://ebutlab.com/blog/2025/02/21/beyond-the-headlines-understanding-the-deeper-aspects-of-the-gaza-crisis-through-data-media-and-technology/ Fri, 21 Feb 2025 06:58:45 +0000 https://ebutlab.com/?p=22920 Understanding the crisis through cutting-edge reporting and cutting-edge technology

The cross-border attack by Hamas on October 7, 2023 and Israel’s counterattack have resulted in a serious humanitarian crisis. The Interfaculty Initiative in Information Studies at the University of Tokyo is collaborating with the Middle Eastern news organization Al Jazeera and the American University of Beirut (AUB) to promote international collaborative research to re-present and disseminate the war damage in Gaza using advanced technology. As part of this effort, we will host an international symposium and special exhibition inviting prominent researchers, journalists, and experts from Japan and abroad to discuss the Gaza crisis from multiple perspectives …

Date & time: Monday, March 31, 2025, 1:00 PM – 8:00 PM JST
Location: Fukutake Hall, Interfaculty Initiative in Information Studies

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Innovative Approach Developed for Removing Extra Chromosome 21 in Cells from Individuals with Down Syndrome Using CRISPR-Cas9 Genome Editing Technology https://ebutlab.com/blog/2025/02/20/innovative-approach-developed-for-removing-extra-chromosome-21-in-cells-from-individuals-with-down-syndrome-using-crispr-cas9-genome-editing-technology/ Thu, 20 Feb 2025 06:11:51 +0000 https://ebutlab.com/?p=22912 Summary of our research
A research team led by Dr. Ryotaro Hashizume from the Graduate School of Medicine (a member of the Unit for Genomic Manipulation and Technology Development) has developed a pioneering technique for eliminating the extra copy of chromosome 21 in cells derived from individuals with Down syndrome. Down syndrome is caused by trisomy, where there are three copies of chromosome 21 instead of the usual two, leading to intellectual developmental disabilities and other complications. Approximately one in every 700 births is affected by this condition. Until now, there has been no effective technology to eliminate the extra chromosome, which is the root cause of the syndrome, from the cells…

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Feel UKRAINE through photos and films https://ebutlab.com/blog/2025/02/10/photo-video-exhibition-for-ukraine/ Mon, 10 Feb 2025 11:16:42 +0000 https://ebutlab.com/?p=22837 Event shows

Event Space
On street from YOKOHAMA Stn to SOGO department stores on B2F, half of open to outside

Path to Space
About 100m from parking to event space, no steps 🙂
Only using parking for setting up

Power & Network
Enough

About the Ukraine special exhibition “Ukraine through photos and films”

  • Date: 10:00-18:00, March 1, Sat & 2, Sun, 2025
  • Location: Shintoshi Plaza (in front of the main entrance on the 2nd basement floor of Sogo Yokohama, 2-18-1 Takashima, Nishi-ku, Yokohama)
  • Organizer: Kanagawa Prefecture
  • Co-organizer: Embassy of Ukraine in Japan, Ukrainian Cultural Center UKRAINE HOUSE JAPAN
  • Cooperation: Hidenori Watanabe Laboratory, Graduate School of the University of Tokyo, NPO Arupe Nanmin Center
  • Main Contents: Utilizing cutting-edge technology, the site will be recreated in 3D and photographic panels will be on display, providing insight into the current situation in Ukraine.
  • Free admission, no prior registration required

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Updated Windows 11 24H2, then … https://ebutlab.com/blog/2025/01/25/updated-windows-11-24h2-then/ Fri, 24 Jan 2025 21:48:44 +0000 https://ebutlab.com/?p=22842 続きを読む]]> ネットワーク共有ドライブにアクセスできなくなった!時には、[Windows11] 24H2更新後「組織のセキュリティポリシーによって非認証のゲスト アクセスがブロックされている」と表示され共有フォルダにアクセスできない by 大塚商会 の解決方法であげている
対応方法:従来の状態に戻す場合は2の対応方法を実施します。
 ※強化された設定が無効化されるため、セキュリティリスクが高まる可能性があります。
が Windows Server、認証を利用していない環境では確実ですね。

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Digital Archives for the forefront of disasters, ISHIKAWA 2025 https://ebutlab.com/blog/2024/12/29/the-forefront-of-disaster-digital-archives/ Sat, 28 Dec 2024 23:38:48 +0000 https://ebutlab.com/?p=22731 One year since the Noto Peninsula earthquake: Ishikawa Prefecture digital archive kickoff event.
Wednesday, January 15, 2025, 10:00-17:00

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“War in Cities” at Minato Mirai Yokohama, JAPAN https://ebutlab.com/blog/2024/10/18/war-in-cities-%e6%88%a6%e4%ba%89%e3%81%ae%e8%a1%97%e3%82%92%e4%bd%93%e6%84%9f%e3%81%99%e3%82%8b/ Fri, 18 Oct 2024 02:57:03 +0000 https://ebutlab.com/?p=22653 Date: 18 Wed – 25 Wed Dec, 2024
Location: Minato Mirai Gallery A
2 Chome-3-5 Minatomirai, Nishi Ward, Yokohama, Kanagawa 220-0012
By International Committee of the Red Cross, JAPANWar in Cities,


Embassy of Switzerland in JapanExhibition “War in Cities”
An exhibition on urban warfare and its catastrophic impact on civilian populations

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Peace Activities For Future in Nagasaki – The World Connected by Technology – https://ebutlab.com/blog/2024/08/11/peace-activities-for-future-in-nagasaki-the-world-connected-by-technology/ Sun, 11 Aug 2024 09:10:26 +0000 https://ebutlab.com/?p=22629 続きを読む]]> August 4, 2024 10:00 – August 8, 2024 19:00 @Nagasaki City Hall

Bringing “Nagasaki’s Memories” to the future with technology and the power of the younger generation.

On August 9, 2024, we will mark the 79th anniversary of the atomic bombing. Hidenori Watanabe Laboratory of the University of Tokyo Graduate School, Japan Council of Atomic and Hydrogen Bomb Victims’ Groups, Japan Federation of Consumers’ Cooperatives, Nagasaki Prefecture Consumers’ Cooperatives Federation, and Nagasaki Kokusai Television Co., Ltd. are jointly organizing the Future Peace Activities Exhibition ~Connecting through Technology'' The World will be held. This exhibition is an updated version of theMirai Peace Activities” exhibition held at Hiroshima Television Headquarters last August.

Along with a new generation of peace activity content that utilizes technologies such as digital twins and VR, an exhibition that conveys the disaster situation in conflict areas around the world such as Ukraine and the Gaza Strip, an atomic bomb photo exhibition by the Japan Council of Atomic and Hydrogen Bomb Victims’ Organizations, and Nagasaki International Television You can experience peace content and more. On August 5th and 6th, we will also hold a workshop called Let's learn about Nagasaki's history with the educational version of Minecraft,'' which will deepen your understanding of Nagasaki's history throughMinecraft,” which is popular among children around the world.

Through this exhibition, we will create a place where visitors can see, touch, and feel the “Nagasaki” that has been handed down from the past, and connect it to the future.

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ミライ世代と読む戦中写真 ―データを紡いで平和につなぐ― https://ebutlab.com/blog/2024/04/01/%e3%83%9f%e3%83%a9%e3%82%a4%e4%b8%96%e4%bb%a3%e3%81%a8%e8%aa%ad%e3%82%80%e6%88%a6%e4%b8%ad%e5%86%99%e7%9c%9f%e3%80%80%e2%80%95%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e7%b4%a1%e3%81%84%e3%81%a7%e5%b9%b3/ Mon, 01 Apr 2024 02:49:49 +0000 https://ebutlab.com/?p=22561 続きを読む]]> 東京大学情報学環・渡邉英徳研究室と毎日新聞社、京都大学・東南アジア地域研究研究所は 2024年3月31日、毎日新聞社特派員が戦時中に撮影した「毎日戦中写真」から平和を考える「ミライ世代と読む戦中写真 ―データを紡いで平和につなぐ―」を開催。

公式webサイト:https://mainichi.jp/senchu/

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戦争をデジタル技術でよりリアルに 東大教授と学生の取り組み@NHK https://ebutlab.com/blog/2023/11/06/%e6%88%a6%e4%ba%89%e3%82%92%e3%83%87%e3%82%b8%e3%82%bf%e3%83%ab%e6%8a%80%e8%a1%93%e3%81%a7%e3%82%88%e3%82%8a%e3%83%aa%e3%82%a2%e3%83%ab%e3%81%ab%e3%80%80%e6%9d%b1%e5%a4%a7%e6%95%99%e6%8e%88%e3%81%a8/ Mon, 06 Nov 2023 10:00:00 +0000 https://ebutlab.com/?p=22472 続きを読む]]>

ロシアがウクライナへの軍事侵攻を開始してから 今月で1年9か月。 いまだ東部や南部で激しい攻防が繰り返され、 兵士の犠牲も増え続けています。 また、パレスチナのガザ地区では、 イスラエル軍が激しい空爆や戦車による 軍事行動を拡大しており、 現在進行形で争いが起きています …

一方、日本では太平洋戦争の終結から 78年が経ち、戦争を直に知る人が 減り続けています。 忘れてはいけない戦争の記憶を、 次の世代にどう伝え、考えていくのか。 最新技術をいかして「体感」してもらおうという 新たな取り組みを取材しました。 (写真・文: ニュースLIVE!ゆう5時 溪 美智ディレクター)

■東京大学大学院にある、渡邉英徳研究室 (東京大学大学院 情報学環)。 ウクライナの被害の実態を VR(バーチャルリアリティー)で 体験できると聞き、訪ねました。

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The History of the Earthquake – Science and Technology Connecting to the Future – 100th Anniversary Exhibition of the Great Kanto Earthquake https://ebutlab.com/blog/2023/09/01/100th-anniversary-exhibition-of-the-great-kanto-earthquake-the-history-of-the-earthquake-science-and-technology-connecting-to-the-future/ Fri, 01 Sep 2023 00:02:51 +0000 https://ebutlab.com/?p=22399

This year marks 100 years since the Great Kanto Earthquake of 1923 (Taisho 12) caused severe damage to the Kanto region.

This exhibition introduces the Great Kanto Earthquake and its recovery, earthquake disaster prevention research over the past 100 years, and current disaster countermeasures and challenges. This exhibition considers the relationship between people, nature, science and technology, and the importance of learning from the past and passing it on to the future.

Event period : September 1 Fri to November 26 Sun, 2023
Location: National Museum of Nature and Science, Ueno Park, Tokyo
URL: https://www.kahaku.go.jp/event/2023/09earthquake/


Ref#1: Meeting Point

Ref#2: Gallery for actions

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