4 ms·

Will they do anything about its terrible performance? According to [1] the Windows Defender causes a 5x increase of Chrome's build times and it delays a process

by hs86 9y ago

Will they do anything about its terrible performance? According to [1] the Windows Defender causes a 5x increase of Chrome's build times and it delays a process start by 260 ms. [1] https://twitter.com/BruceDawson0xB/status/940747236614574080 https://twitter.com/BruceDawson0xB/status/940747236614574080

nucleardog 9y ago
Do you have any numbers from other products to show this is an issue with Windows Defender's performance, and not just with the general concept of scan-on-access antivirus?
dontyouremember 9y ago
You can exclude bin directories from Defender: https://support.microsoft.com/en-us/help/4028485/windows-10-add-an-exclusion-to-windows-defender-antivirus https://support.microsoft.com/en-us/help/4028485/windows-10-...
cptskippy 9y ago
What measure are you using to determine the performance is terrible? As a developer, I have always had issues with Antivirus. If your compile times are crap then AV should be one of the first things you try disabling. Hell, I've had overly aggressive AV (McAfee) locking files in temp data folders causing performance to falter in running applications (Visual Studio, Pidgin, Outlook, Office). Why does the end user care about compile times?
- Someone1234 9y ago
  I've had the same experience, I've just taken to whitelisting all of the cache, assembly, and lib folders throughout the workflow (and processes). Never found an AV which didn't seriously hamper build times, since building often involves a lot of process start/stops and new small files, both of which are kryptonite to AV. MalwareBytes Enterprise recently got completely uninstalled as it was locking random files during compilation indefinitely. They have a fix but only for the consumer branch.
- emmelaich 9y ago
  Yes, you can disable anti-virus per directory or per-process. AFAIK. Certainly for some anti-virus software.
bitmapbrother 9y ago
I wonder if their anti-virus also delays the start of their Edge browser.

by hs86 9y ago

nucleardog 9y ago

Do you have any numbers from other products to show this is an issue with Windows Defender's performance, and not just with the general concept of scan-on-access antivirus?

dontyouremember 9y ago

You can exclude bin directories from Defender: https://support.microsoft.com/en-us/help/4028485/windows-10-add-an-exclusion-to-windows-defender-antivirus https://support.microsoft.com/en-us/help/4028485/windows-10-...

cptskippy 9y ago

What measure are you using to determine the performance is terrible? As a developer, I have always had issues with Antivirus. If your compile times are crap then AV should be one of the first things you try disabling. Hell, I've had overly aggressive AV (McAfee) locking files in temp data folders causing performance to falter in running applications (Visual Studio, Pidgin, Outlook, Office). Why does the end user care about compile times?

Someone1234 9y ago
I've had the same experience, I've just taken to whitelisting all of the cache, assembly, and lib folders throughout the workflow (and processes). Never found an AV which didn't seriously hamper build times, since building often involves a lot of process start/stops and new small files, both of which are kryptonite to AV. MalwareBytes Enterprise recently got completely uninstalled as it was locking random files during compilation indefinitely. They have a fix but only for the consumer branch.
emmelaich 9y ago
Yes, you can disable anti-virus per directory or per-process. AFAIK. Certainly for some anti-virus software.

bitmapbrother 9y ago

I wonder if their anti-virus also delays the start of their Edge browser.