Re: Slow writes to disk

2018-11-04 Thread David Christensen
On 11/4/18 4:21 AM, Michael Stone wrote: On Sat, Nov 03, 2018 at 06:49:59PM -0700, David Christensen wrote: When trouble shooting, it is useful to have a means to elicit the failure mode on demand. Sure. That's just not it. You are deleting too much context in your replies. If dbench(1) is

Re: Slow writes to disk

2018-11-04 Thread Michael Stone
On Sat, Nov 03, 2018 at 06:49:59PM -0700, David Christensen wrote: When trouble shooting, it is useful to have a means to elicit the failure mode on demand. Sure. That's just not it.

Re: Slow writes to disk

2018-11-03 Thread David Christensen
On 11/3/18 1:35 PM, Michael Stone wrote: On Sat, Nov 03, 2018 at 12:20:34PM -0700, David Christensen wrote: On 11/3/18 4:58 AM, Michael Stone wrote: On Fri, Nov 02, 2018 at 07:27:41PM -0700, David Christensen wrote: 3.  Download and run the manufacturer's diagnostic utility (Windows may be req

Re: Slow writes to disk

2018-11-03 Thread Michael Stone
On Sat, Nov 03, 2018 at 12:20:34PM -0700, David Christensen wrote: On 11/3/18 4:58 AM, Michael Stone wrote: On Fri, Nov 02, 2018 at 07:27:41PM -0700, David Christensen wrote: 3.  Download and run the manufacturer's diagnostic utility (Windows may be required): this is basically going to be th

Re: Slow writes to disk

2018-11-03 Thread David Christensen
On 11/3/18 4:58 AM, Michael Stone wrote: On Fri, Nov 02, 2018 at 07:27:41PM -0700, David Christensen wrote: 3.  Download and run the manufacturer's diagnostic utility (Windows may be required): this is basically going to be the equivalent of smartctl -H, As the tools are proprietary, figuri

Re: Slow writes to disk

2018-11-03 Thread songbird
Stefan Monnier wrote: > For a while now I noticed that aptitude is very slow on one of my > machine (Thinkpad T61) running Debian testing. At first I thought it > was because its disk (a fairly old 120GB SSD) was suffering from some > kind of problem, so I replaced it with an almost new 240GB Sams

Re: Slow writes to disk

2018-11-03 Thread Michael Stone
On Fri, Nov 02, 2018 at 07:27:41PM -0700, David Christensen wrote: 1. Backup your data and configuration settings. never a bad idea 3. Download and run the manufacturer's diagnostic utility (Windows may be required): this is basically going to be the equivalent of smartctl -H, no need to

Re: Slow writes to disk

2018-11-02 Thread David Christensen
On 11/2/18 5:31 AM, Stefan Monnier wrote: For a while now I noticed that aptitude is very slow on one of my machine (Thinkpad T61) running Debian testing. At first I thought it was because its disk (a fairly old 120GB SSD) was suffering from some kind of problem, so I replaced it with an almost

Re: Slow writes to disk

2018-11-02 Thread Stefan Monnier
>>It seemed to bet better at first, but maybe it was just an impression. >>In any case, now it's definitely very slow. Digging more into it, >>I found out that part of the problem seems to be very slow writes to >>the disk. I can reproduce tests where `dd`ing a 40MB file proceeds at >>the ridicul

Re: Slow writes to disk

2018-11-02 Thread Curt
On 2018-11-02, Martin wrote: > How does your partition alignment look for that disk? > Or, in other words, what does 'fdisk -l' tell you about this one? > The enduring mystery is how he managed to squeeze so little into so much. -- When you have fever you are heavy and light, you are small and

Re: Slow writes to disk

2018-11-02 Thread Martin
How does your partition alignment look for that disk? Or, in other words, what does 'fdisk -l' tell you about this one? Am 02.11.18 um 13:31 schrieb Stefan Monnier: > For a while now I noticed that aptitude is very slow on one of my > machine (Thinkpad T61) running Debian testing. At first I thou

Re: Slow writes to disk

2018-11-02 Thread Michael Stone
On Fri, Nov 02, 2018 at 08:31:50AM -0400, Stefan Monnier wrote: It seemed to bet better at first, but maybe it was just an impression. In any case, now it's definitely very slow. Digging more into it, I found out that part of the problem seems to be very slow writes to the disk. I can reproduce