From b720b43611ca329bd912b1b62ade2a059bb4f122 Mon Sep 17 00:00:00 2001
From: Sergey Matveev <stargrave@stargrave.org>
Date: Mon, 27 Sep 2021 12:27:41 +0300
Subject: [PATCH] =?utf8?q?ZFS=20logbias=3Dthroughput=20=D0=B4=D0=BB=D1=8F?=
 =?utf8?q?=20SSD?=
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ÐÐ»Ñ SSD Ð¸Ð¼ÐµÐµÑ ÑÐ¼ÑÑÐ» Ð²ÑÑÑÐ°Ð²Ð»ÑÑÑ logbias=throughput Ð´Ð»Ñ Ð²ÑÐµÑ dataset-Ð¾Ð².
Ð­ÑÐ¾ Ð´Ð¾ÑÐ»Ð¾ Ð´Ð¾ Ð¼ÐµÐ½Ñ ÑÐ¾Ð»ÑÐºÐ¾ ÐºÐ¾Ð³Ð´Ð° ÑÑÐ°Ð» Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑ NVMe. Ð¡ logbias=latency,
ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð¿Ð¾ ÑÐ¼Ð¾Ð»ÑÐ°Ð½Ð¸Ñ, Ð´Ð°Ð½Ð½ÑÐµ fsync-Ð¾Ð² Ð±ÑÐ´ÑÑ Ð¿Ð¸ÑÐ°ÑÑÑÑ Ð¿Ð¾ Ð´Ð²Ð° ÑÐ°Ð·Ð°. Ð­ÑÐ¾
Ð²ÑÑ ÑÐ´ÐµÐ»Ð°Ð½Ð¾ Ð±ÑÐ»Ð¾ Ð´Ð»Ñ Ð¶ÑÑÑÐºÐ¸Ñ Ð´Ð¸ÑÐºÐ¾Ð², ÑÑÐ¾Ð±Ñ Ð¾Ð½Ð¸ Ð¼Ð¾Ð³Ð»Ð¸ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾ Ð·Ð°Ð¿Ð¸ÑÑÐ²Ð°ÑÑ
ZIL Ð¾Ð±Ð»Ð°ÑÑÑ, Ð±ÐµÐ· random seek-Ð¾Ð². ÐÐ»Ñ SSD random seek-Ð¸ Ð¸Ð¼ÐµÑÑ ÑÐ°ÐºÑÑ Ð¶Ðµ
ÑÑÐ¾Ð¸Ð¼Ð¾ÑÑÑ, ÑÑÐ¾ Ð¸ Ð»Ð¸Ð½ÐµÐ¹Ð½ÑÐµ.
-- 
2.48.1