On Wed, Aug 08, 2018 at 08:59:40AM +0200, Solene Rapenne wrote: > Derek Sivers <open...@q7r7.com> wrote: > > This past month or so, my Lenovo T440s laptop has started doing strange > > 2-second pauses at random intervals, sometimes a few times per minute. > > > > How would you look for the source of this trouble? There's nothing in > > /var/log showing when it happens. No log entries added there. Where else > > would you look? > > > > The easiest way to spot it in action is with a simple ls : > > > > cd /tmp > > mkdir a b c > > time ls a > > 0m00.00s real 0m00.00s user 0m00.01s system > > time ls b > > 0m03.22s real 0m00.00s user 0m00.01s system # there is the > > random pause > > time ls c > > 0m00.00s real 0m00.00s user 0m00.00s system > > time ls b > > 0m00.00s real 0m00.00s user 0m00.00s system > > > > I've tried it running OpenBSD 6.3 RELEASE, STABLE, and CURRENT. Happens > > with all. > > > > I wiped the entire drive (dd if=/dev/zero) then re-installed from scratch, > > and it still happens. > > > > It happens whether running X or just in the initial raw console without > > startx. > > > > I know it isn't an OpenBSD problem, but any suggestions where you'd look if > > it was you? > > > > Thank you. > > > > - Derek > > Hi Derek > > I think that your hard drive is failing. Is it a SSD? If no, it's > typical of an old failing hard disk. > > Could you try to mount a mfs filesystem and see if your example makes a > pause? That should not trigger any disk read as it's an in-memory > filesystem, if it doesn't block that mean that the hard disk is failing.
Thanks for the reply and suggestion. It's an SSD - https://www.cnet.com/products/adata-premier-sp600ns34-solid-state-drive-128-gb-sata-6gb-s/specs/ - but I'll try the MFS thing, too.
