a little more info about my patch. in one of my test env, system default read_ahead size is 1024 sector (512K), which bigger than 128k in test case. which causes _set_dev_node_read_ahead() to deny to set up RA. On 8/12/20 7:18 PM, Zhao Heming wrote: > lvconvert-repair-raid.sh: > - in some env, the delay=0 is too short to set up env. > > lvcreate-usage.sh: > - use correct underlying dev for brd & loop devices. > - read ahead size should equal or bigger than current system value > > read-ahead.sh: > - use current system ra_size PLUS 128 to set up new ra_size. > for detail, refer _set_dev_node_read_ahead in libdm-common.c > > Signed-off-by: Zhao Heming <heming.zhao@xxxxxxxx> > --- > test/shell/lvconvert-repair-raid.sh | 2 +- > test/shell/lvcreate-usage.sh | 11 ++++++----- > test/shell/read-ahead.sh | 6 ++++-- > 3 files changed, 11 insertions(+), 8 deletions(-) > _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
