Demetra is slow when opening/closing

It looks like Demetra is taking much more time to start up/shut down. It
was much faster than 5.0, 5.1. For shutting down, it took almost a minute
for me.

Nat


11 comments

Hello Nat,

N> It looks like Demetra is taking much more time to start up/shut down.
N> It was much faster than 5.0, 5.1. For shutting down, it took almost a
N> minute for me.

We've experienced such slowdowns as well, and found them to be caused by
anti-virus software. Please try to disable background scanning of files and
see if it helps.

--
Dmitry Jemerov
Software Developer
JetBrains, Inc.
http://www.jetbrains.com
"Develop with pleasure!"


0

Looks like Antiviruses vendors enemies of developers :)
Probably if someome who will create Antivirus for developers he will be successful on the market :)

0

Dmitry Jemerov (JetBrains) wrote:

We've experienced such slowdowns as well, and found them to be caused by
anti-virus software. Please try to disable background scanning of files
and see if it helps.

Interesting... any idea on what the problem extensions are so we can set
up some filters, rather than switching off protection altogether?

N.

0

Looks like Antiviruses vendors enemies of developers :)
Probably if someome who will create Antivirus for developers he will be successful on the market :)

Or use an OS where Antiviruses are not really required :).

Ahmed.

0

Hello Nathan,

At least exclude IDEA's system and config directories. Normally, whole %USER_HOME%\.IntelliJIDEA60
should be excluded.

-


Maxim Shafirov
JetBrains, Inc
http://www.jetbrains.com
"Develop with pleasure!"

Dmitry Jemerov (JetBrains) wrote:

>> We've experienced such slowdowns as well, and found them to be caused
>> by anti-virus software. Please try to disable background scanning of
>> files and see if it helps.
>>

Interesting... any idea on what the problem extensions are so we can
set up some filters, rather than switching off protection altogether?

N.



0

Maxim Shafirov (JetBrains) wrote:

Hello Nathan,

At least exclude IDEA's system and config directories. Normally, whole
%USER_HOME%\.IntelliJIDEA60 should be excluded.

------------------
Maxim Shafirov
JetBrains, Inc
http://www.jetbrains.com
"Develop with pleasure!"

>> Dmitry Jemerov (JetBrains) wrote:
>>
>>> We've experienced such slowdowns as well, and found them to be caused
>>> by anti-virus software. Please try to disable background scanning of
>>> files and see if it helps.
>>>
>> Interesting... any idea on what the problem extensions are so we can
>> set up some filters, rather than switching off protection altogether?
>>
>> N.
>>


Thanks, works like a charm!

Cheers,
N.

0

Hello Dmitry,

I can't disable antivirus scanner and I think a lot of people don't have
a full control to do that either. Is it possible to make the write operations
to be more in bulk instead of doing multiple writing to the files to reduce
the activity of the scanner?

Thanks,
Nat

Hello Nat,

N>> It looks like Demetra is taking much more time to start up/shut
N>> down. It was much faster than 5.0, 5.1. For shutting down, it took
N>> almost a minute for me.
N>>

We've experienced such slowdowns as well, and found them to be caused
by anti-virus software. Please try to disable background scanning of
files and see if it helps.



0

Dmitry,

I've noticed this as well, but it only happens with
demetra. The system files are shared between the two
versions, and the slowdown happens only with demetra,
so an AV software can't be blamed here? I assumed it
was because you've reenabled a lot of debugging info
since this is a new EAP.

Cheers,

Bonny

0

Hello Bonny,

BR> I've noticed this as well, but it only happens with demetra. The
BR> system files are shared between the two versions, and the slowdown
BR> happens only with demetra, so an AV software can't be blamed here? I
BR> assumed it was because you've reenabled a lot of debugging info
BR> since this is a new EAP.

No, we didn't really re-enable any debugging info. The low-level logic of
file operations has changed quite significantly in Demetra compared with
5.0/5.1, so the possible interference from AV software has changed as well.

--
Dmitry Jemerov
Software Developer
JetBrains, Inc.
http://www.jetbrains.com
"Develop with pleasure!"


0

Or use an OS where Antiviruses are not really required :).

.. and then be unable to use ninety-nine percent of the other apps out there .... :-D

I've always found Avast to be OK, might be worth giving that a try ....

0

I can't disable antivirus scanner and I think a lot
of people don't have a full control to do that either.
Is it possible to make the write operations
to be more in bulk instead of doing multiple writing
to the files to reduce the activity of the scanner?

Thanks,
Nat


I think most of the developers have at least power user level control over the machines they work with. Antivirus programs have always been the major source of slowdowns in Java IDE's and even if the program is dumb enough to perform checking of *.java or *.class files it would be a total waste of developer time to design useless workarounds for that.

Ask the someone from the 'maintenance' staff to configure your antivirus software so that it doesn't interfere with your work. It is simply the best solution to well known problem.

I personally don't have a full time antivirus toolkit (only a firewall and a manual check now and then) and I've disabled windows swap file. The performance difference compared to identical machines with both fulltime antivirus and swap file is huge.

0

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