Ubuntu 18.04.2 unresponsive on hd activity

[nibbli at gmx.de]

Yes, I meant cat instead of echo and I’m writing to my home directory. 

> On Feb 25, 2019, at 6:19 AM, Ralf Mardorf via ubuntu-users <ubuntu-users at lists.ubuntu.com> wrote:
> 
>> On Mon, 25 Feb 2019 13:05:33 +0100, Ralf Mardorf wrote:
>>> On Mon, 25 Feb 2019 11:45:04 +0100, Oliver Grawert wrote:
>>> hi,
>>> Am Sonntag, den 24.02.2019, 21:47 -0600 schrieb nibbli at gmx.de:  
>>>> Hello,
>>>> When stuff is written to hd, my Ubuntu 18.04.2 gets kind of
>>>> unresponsive.
>>>> 
>>>> To reproduce:
>>>> echo /dev/zero > test
>>>> 
>>> are you sure you dont mean "cat /dev/zero >test" ? 
>>> 
>>> the above would just echo the string "/dev/zero"
>>> into the file "test" ;)  
>> 
>> It's even more worse that writing 9 chars (instead of tons of zeros)
>> requires "CTRL+C" before any other program could start. Using the
>> slowest HDD ever, let alone a SSD, it should be impossible to push
>> "CTRL+C" before writing 9 chars finished. If the OP is able to run the
>> echo line and to stop it using "CTRL+C" before it finished, something
>> is really fishy.
> 
> PS: The path could also be important. I tend to write test files
> to tmpfs, IOW to RAM instead of a hard disk or a solid-state drive.
> 
> 
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