> On 15 Aug 2024, at 21:29, Roger Heflin <rogerhef...@gmail.com> wrote: > > So it is only slow on the slow port? If so it kind of sounds like the > fs may be mounted sync and/or the disks write cache is disabled. > smartctl --xall <device> sometimes works against usb disk and > sometimes it does not work. if it works it will tell you the write > cache status. The sync and/or btrfs filesystem settings would be seen > in /proc/mounts
Are you using nemo file manager on cinnamon? Is so its a know issue that has been fixed https://discussion.fedoraproject.org/t/much-slower-usb-transfer-speed-after-updating-from-stock-iso-install/128326/37 Barry > > >> On Thu, Aug 15, 2024 at 3:09 PM Andre Robatino >> <robat...@fedoraproject.org> wrote: >> >> The drive is about 76% full but I don't think it's fragmentation since the >> transfer of the same ~2 GB file to the portable drive is consistently >> relatively fast from a blue or yellow USB port, and very slow from a black >> USB port. Here's the output of "df -T /dev/sdb1" with the drive plugged in: >> >> Filesystem Type 1K-blocks Used Available Use% Mounted on >> /dev/sdb1 btrfs 976759808 735116440 239872328 76% >> /run/media/andre/Seagate >> >> Below is the output from usbview, this is with it plugged into the desktop's >> black USB 2.0 port so it's only showing that speed, not the USB 3.0 speed of >> the portable drive. >> >> Backup+ BK >> Manufacturer: Seagate >> Serial Number: NA515PK9 >> Speed: 480Mb/s (high) >> Bus: 2 >> Address: 3 >> USB Version: 2.10 >> Device Class: 00 >> Device Subclass: 00 >> Device Protocol: 00 >> Maximum Default Endpoint Size: 64 >> Number of Configurations: 1 >> Vendor Id: 0bc2 >> Product Id: a013 >> Revision Number: 01.00 >> >> Config Number: 1 >> Number of Interfaces: 1 >> Attributes: 80 >> MaxPower Needed: 100mA >> >> Interface Number: 0 >> Name: usb-storage >> Alternate Number: 0 >> Class: 08 >> Sub Class: 06 >> Protocol: 50 >> Number of Endpoints: 2 >> >> Endpoint Address: 02 >> Direction: out >> Attribute: 2 >> Type: Bulk >> Max Packet Size: 512 >> Interval: 0ms >> >> Endpoint Address: 81 >> Direction: in >> Attribute: 2 >> Type: Bulk >> Max Packet Size: 512 >> Interval: 0ms >> -- >> _______________________________________________ >> users mailing list -- users@lists.fedoraproject.org >> To unsubscribe send an email to users-le...@lists.fedoraproject.org >> Fedora Code of Conduct: >> https://docs.fedoraproject.org/en-US/project/code-of-conduct/ >> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines >> List Archives: >> https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org >> Do not reply to spam, report it: >> https://pagure.io/fedora-infrastructure/new_issue > -- > _______________________________________________ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org > Fedora Code of Conduct: > https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org > Do not reply to spam, report it: > https://pagure.io/fedora-infrastructure/new_issue
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