Package: xfce4-power-manager Version: 1.0.10-4 Severity: important Whenever xfce4-power-manager is started, the RAID0 performance drops severely:
$ sudo hdparm -t /dev/md0 /dev/md0: Timing buffered disk reads: 624 MB in 3.01 seconds = 207.47 MB/sec $ xfce4-power-manager $ sudo hdparm -t /dev/md0 /dev/md0: Timing buffered disk reads: 452 MB in 3.01 seconds = 150.33 MB/sec Furthermore it seems that the rootfs gets remounted showing the following line in dmesg: [ 36.443770] EXT4-fs (sda1): re-mounted. Opts: discard,errors=remount-ro,commit=0 The problem shows on two of my systems, both running an up-to-date Testing with EXT4 rootfs on SSD and /home with XFS on RAID0 (via device-mapper) HDDs. The performance is only regained after reboot, stopping xfce4-power-manager has no effect. Changing "spin-down-on-ac" in .config/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml has no effect, too. The performance drop could be related to AAM, as I get the same drop when setting "hdparm -M128" for the RAID disks. As an interim solution I removed xfce4-power-manager from autostart. Best, Björn -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
