OS X: Increased CPU usage in drivelist perl regular expression

• Etcher version: 1.0.0 beta10

• Operating system and architecture: Mac X 10.12.4

• Do you see any meaningful error information on DevTools? Nope!

I used this tool, serveral days, very interesting and useful. But, after writing some image file, raspbian zipped image. etcher remains some ‘perl’ processes like below.

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perl -n -e/\((\d+)\sBytes\)/ && print $1

and I followed this process then found more

~$ ps -ef |grep 21296
  501 21296 21292   0 화05AM ??       878:52.60 perl -n -e/\((\d+)\sBytes\)/ && print $1

~$ ps -ef|grep 21292
  501 21292 21196   0 화05AM ??         0:00.00 /bin/bash /var/folders/mn/prcr5p_95vx_m1rx342svyvc0000gn/T/.io.resin.etcher.G7bxhO
  501 21296 21292   0 화05AM ??       879:35.17 perl -n -e/\((\d+)\sBytes\)/ && print $1

@ ~$ ps -ef |grep 21196
  501 21196     1   0 화05AM ??         0:00.01 /bin/bash /var/folders/mn/prcr5p_95vx_m1rx342svyvc0000gn/T/.io.resin.etcher.G7bxhO
  501 21292 21196   0 화05AM ??         0:00.00 /bin/bash /var/folders/mn/prcr5p_95vx_m1rx342svyvc0000gn/T/.io.resin.etcher.G7bxhO

it did not sleep my computer and processing something… i don’t know it make overheat my macbook, all time 60~65 degree and run fans through 3500~4000 rpms.

when i kill theses process my computer back to normal condition and very cool.

I will try 1.0.0 rc2 and check and monitor this happend. thanks.

[pixeltrix]

FYI, I just had to kill an Etcher perl process:

perl -n -em{^/dev/disk0(s[0-9]+)? on (.*) \(.*\)$} && print "$2\n"

It was still consuming 99% of a CPU core many hours after I’d quit Etcher. This was on Mac OS Sierra 10.12.6 using Etcher 1.1.2. Seems like this is still a problem?

[jviotti]

I just experienced this issue. Perl was taking a decent amount of CPU on my MacBook Pro, even though I had closed Etcher long ago. I can’t manage to reproduce again neither 😕