{"id":183001,"date":"2026-08-15T10:53:29","date_gmt":"2026-08-15T08:53:29","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/v-systemd-journald-spustya-6-let-priznali-problemu-izbytochnoj-nagruzki-na-nakopiteli"},"modified":"2026-08-15T10:53:32","modified_gmt":"2026-08-15T08:53:32","slug":"systemd-journald-acknowledges-excessive-disk-load-problem-after-6-years","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/systemd-journald-acknowledges-excessive-disk-load-problem-after-6-years","title":{"rendered":"Dopo 6 anni, systemd-journald ha riconosciuto il problema del carico eccessivo sui dischi.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 systemd \u043f\u0440\u0438\u0441\u0442\u0443\u043f\u0438\u043b\u0438 \u043a \u0438\u0437\u0443\u0447\u0435\u043d\u0438\u044e \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e \u0434\u0430\u0432\u043d\u0435\u0439 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u043d\u043e\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0435 «systemd-journald», \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0435\u0439 \u043a \u043c\u043d\u043e\u0433\u043e\u043a\u0440\u0430\u0442\u043d\u043e\u043c\u0443 \u0437\u0430\u0432\u044b\u0448\u0435\u043d\u0438\u044e \u043e\u0431\u044a\u0451\u043c\u0430 \u0437\u0430\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u043c\u044b\u0445 \u043d\u0430 \u0434\u0438\u0441\u043a \u0434\u0430\u043d\u043d\u044b\u0445 (write amplification) \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u043e\u0431\u044a\u0451\u043c\u043e\u043c \u043b\u043e\u0433\u043e\u0432. <\/p>\n

\u0418\u0441\u0442\u043e\u0440\u0438\u044f \u0442\u044f\u043d\u0435\u0442\u0441\u044f \u0441 \u043c\u0430\u0440\u0442\u0430 2020 \u0433\u043e\u0434\u0430, \u043a\u043e\u0433\u0434\u0430 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u043d\u0438\u044f \u043e\u0448\u0438\u0431\u043e\u043a \u0431\u044b\u043b \u0437\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043d \u043e\u0442\u0447\u0451\u0442, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0431\u044b\u043b\u043e \u043f\u0440\u043e\u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043e, \u0447\u0442\u043e \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043e\u043a\u043e\u043b\u043e 500 \u041a\u0411 \u0442\u0435\u043a\u0441\u0442\u043e\u0432\u044b\u0445 \u043b\u043e\u0433\u043e\u0432 \u0432\u044b\u043b\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432 \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c 700 \u041c\u0411 \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0437\u0430\u043f\u0438\u0441\u0438 \u043d\u0430 SSD. \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 systemd \u0442\u043e\u0433\u0434\u0430 \u043d\u0430\u043e\u0442\u0440\u0435\u0437 \u043e\u0442\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u043f\u0440\u0438\u0437\u043d\u0430\u0432\u0430\u0442\u044c \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443, \u043e\u0442\u0432\u0435\u0442\u0438\u043b\u0438 \u0432 \u0441\u0442\u0438\u043b\u0435 «\u0432\u044b \u043d\u0435 \u043f\u043e\u043d\u0438\u043c\u0430\u0435\u0442\u0435, \u043a\u0430\u043a \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b», \u043e\u0442\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u043e\u0442 \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0444\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u0437\u0430\u043a\u0440\u044b\u043b\u0438 \u0437\u0430\u044f\u0432\u043a\u0443 \u0441 \u0432\u0435\u0440\u0434\u0438\u043a\u0442\u043e\u043c «not actionable». \u041a\u043e\u043c\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0441\u043e\u0431\u0440\u0430\u043b\u0438 \u0441\u043e\u0442\u043d\u0438 \u043e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u043e\u0446\u0435\u043d\u043e\u043a \u043e\u0442 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439, \u043e\u0434\u043d\u0430\u043a\u043e \u043f\u043e\u0437\u0438\u0446\u0438\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043e\u0441\u0442\u0430\u043b\u0430\u0441\u044c \u043d\u0435\u043f\u0440\u0435\u043a\u043b\u043e\u043d\u043d\u043e\u0439. <\/p>\n

All'inizio del 2026, \u00e8 stata inviata una segnalazione ripetuta sul problema, durante la quale il sviluppatore indipendente ValdikSS ha effettuato un dettagliato profiling utilizzando cgroup isolati e dispositivi loop, dimostrando in modo chiaro il meccanismo di origine del problema: a causa dell'uso di file mappati in memoria (mmap) e tabelle hash binarie, la scrittura anche di un singolo messaggio testuale di 750 byte provoca la modifica di blocchi in memoria, dando origine al salvataggio su disco di intere pagine da 4 kilobyte e generando da 50 a 70 KB di I\/O finale a livello di dispositivo a blocchi. <\/p>\n

Dopo che il rapporto sul problema \u00e8 apparso nella home page di Hacker News e sono stati pubblicati test sintetici inconfutabili, i manutentori del progetto hanno cambiato retorica e hanno iniziato a lavorare sull'ottimizzazione dei meccanismi di flusso cache e sulla struttura di archiviazione degli indici di journald.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 systemd \u043f\u0440\u0438\u0441\u0442\u0443\u043f\u0438\u043b\u0438 \u043a \u0438\u0437\u0443\u0447\u0435\u043d\u0438\u044e \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e \u0434\u0430\u0432\u043d\u0435\u0439 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u043d\u043e\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0435 «systemd-journald», \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0435\u0439 \u043a \u043c\u043d\u043e\u0433\u043e\u043a\u0440\u0430\u0442\u043d\u043e\u043c\u0443 \u0437\u0430\u0432\u044b\u0448\u0435\u043d\u0438\u044e \u043e\u0431\u044a\u0451\u043c\u0430 \u0437\u0430\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u043c\u044b\u0445 \u043d\u0430 \u0434\u0438\u0441\u043a \u0434\u0430\u043d\u043d\u044b\u0445 (write amplification) \u043f\u043e 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