Feature changed by: Greg Freemyer (gregfreemyer) Feature #312476, revision 2 Title: automatic daily fstrim for SSD openSUSE Distribution: Unconfirmed Priority Requester: Mandatory Requested by: vincent lejeune (vlj) Partner organization: openSUSE.org Description: As SSD are becoming more affordable they are also becoming more widespread on laptop and desktop computer. Modern SSD supports the TRIM functionality. This functionality delays costly erase operation to speed up performance ; these erase operations are then executed by batch (this is SSD equivalent to defragmentation). SSD can only run at their full potential if this functionality is also supported by kernel and/or userland on the OS. Sadly TRIM support by kernel is not optimal yet. Erase operation are not launched automaticaly and this impacts overall SSD performance. A cron script written at setup phase could launch fstrim program each night; this program performs the erase operation needed not to struggle the SSD. + Discussion: + #1: Greg Freemyer (gregfreemyer) (2011-06-05 00:09:39) + There is no downside to this that I'm aware of. The kernel added a + FITRIM ioctl for ext4 and xfs I believe in the fall of 2010. fstrim is + just the userspace tool to invoke the ioctl. fstrim is already in + factory (and 11.4 I think). + If trim is not supported, then the kernel will drop the discard/trim + requests with no harm done. -- openSUSE Feature: https://features.opensuse.org/312476

Feature changed by: Karl Cheng (qantas94heavy) Feature #312476, revision 8 Title: automatic daily fstrim for SSD - openSUSE Distribution: Unconfirmed + openSUSE Distribution: Done Priority Requester: Mandatory Requested by: vincent lejeune (vlj) Partner organization: openSUSE.org Description: As SSD are becoming more affordable they are also becoming more widespread on laptop and desktop computer. Modern SSD supports the TRIM functionality. This functionality delays costly erase operation to speed up performance ; these erase operations are then executed by batch (this is SSD equivalent to defragmentation). SSD can only run at their full potential if this functionality is also supported by kernel and/or userland on the OS. Sadly TRIM support by kernel is not optimal yet. Erase operation are not launched automaticaly and this impacts overall SSD performance. A cron script written at setup phase could launch fstrim program each night; this program performs the erase operation needed not to struggle the SSD. Discussion: #1: Greg Freemyer (gregfreemyer) (2011-06-05 00:09:39) There is no downside to this that I'm aware of. The kernel added a FITRIM ioctl for ext4 and xfs I believe in the fall of 2010. fstrim is just the userspace tool to invoke the ioctl. fstrim is already in factory (and 11.4 I think). If trim is not supported, then the kernel will drop the discard/trim requests with no harm done. #2: Hans de Raad (hcderaad) (2011-06-06 10:21:11) Perhaps this request could be combined with: https://features.opensuse.org/311341 + #3: Karl Cheng (qantas94heavy) (2016-11-17 11:53:43) + I believe that nowadays fstrim is run once a week for SSDs by default. -- openSUSE Feature: https://features.opensuse.org/312476