What is Hackers' Pub?

The /proc Filesystem — The Linux Kernel documentation

Description¶ rchar¶ I/O counter: chars read The number of bytes which this task has caused to be read from storage. This is simply the sum of bytes which this process passed to read() and pread(). It includes things like tty IO and it is unaffected by whether or not actual physical disk IO was required (the read might have been satisfied from pagecache). wchar¶ I/O counter: chars written The number of bytes which this task has caused, or shall cause to be written to disk. Similar caveats apply here as with rchar. syscr¶ I/O counter: read syscalls Attempt to count the number of read I/O operations, i.e. syscalls like read() and pread(). syscw¶ I/O counter: write syscalls Attempt to count the number of write I/O operations, i.e. syscalls like write() and pwrite(). read_bytes¶ I/O counter: bytes read Attempt to count the number of bytes which this process really did cause to be fetched from the storage layer. Done at the submit_bio() level, so it is accurate for block-backed filesystems. <please add status regarding NFS and CIFS at a later time> write_bytes¶ I/O counter: bytes written Attempt to count the number of bytes which this process caused to be sent to the storage layer. This is done at page-dirtying time. cancelled_write_bytes¶ The big inaccuracy here is truncate. If a process writes 1MB to a file and then deletes the file, it will in fact perform no writeout. But it will have been accounted as having caused 1MB of write. In other words: The number of bytes which this process caused to not happen, by truncating pagecache. A task can cause “negative” IO too. If this task truncates some dirty pagecache, some IO which another task has been accounted for (in its write_bytes) will not be happening. We _could_ just subtract that from the truncating task’s write_bytes, but there is information loss in doing that. Note At its current implementation state, this is a bit racy on 32-bit machines: if process A reads process B’s /proc/pid/io while process B is updating one of those 64-bit counters, process A could see an intermediate result. More information about this can be found within the taskstats documentation in Documentation/accounting.

docs.kernel.org

미국의 엔딩

노래제목 설명에 있습니다...2,3편도 제작 예정...all endings united states1.적색계획 0:002. 2차 미국 내전 0:203. 높은 성의 사나이 0:404. 분단 엔딩 1:005. 피의 꿈 1:256. 공산화 엔딩 1:457. 파시즘 미국 2:078. 독립...

www.youtube.com · YouTube

중국, 안전 문제로 '매립형 차량 문 손잡이' 퇴출한다 - BBC News 코리아

중국은 일론 머스크의 테슬라가 최초로 대중화시킨 매립형 차량 문 손잡이 디자인을 금지한 첫 번째 국가가 됐다.

www.bbc.com · BBC News 코리아

이 대통령 “다주택자 눈물? 청년 피눈물은 안 보이냐”

이재명 대통령은 3일 “대한민국은 위대한 국민의 나라”라며 “상식적이고 번영하는 나라를 위해 망국적인 부동산 투기는 무슨 수를 써서라도 반드시 잡을 것”이라고 거듭 경고했다. 그러면서 “버티는 것보다 파는 것이, 일찍 파는 것이 늦게 파는 것보다 유리할 것”이라고도 했

www.hani.co.kr · 한겨레

이 대통령 “다주택자 눈물? 청년 피눈물은 안 보이냐”

이재명 대통령은 3일 “대한민국은 위대한 국민의 나라”라며 “상식적이고 번영하는 나라를 위해 망국적인 부동산 투기는 무슨 수를 써서라도 반드시 잡을 것”이라고 거듭 경고했다. 그러면서 “버티는 것보다 파는 것이, 일찍 파는 것이 늦게 파는 것보다 유리할 것”이라고도 했

www.hani.co.kr · 한겨레

2026年01月くらいのAWS最新情報ブログとかをキャッチアップする – AWSトレンドチェック勉強会用資料 | DevelopersIO

AWSの最新情報や私の独断と偏見で面白いと感じたブログをまとめています。みんなでトレンディになろう。

dev.classmethod.jp · クラスメソッド発「やってみた」系技術メディア | DevelopersIO