# Driver instrumentation overhead

**URL:** https://forums.imgtec.com/t/driver-instrumentation-overhead/2602
**Category:** PowerVR Insider
**Created:** [March 13, 2018, 9:30pm UTC](https://forums.imgtec.com/t/driver-instrumentation-overhead/2602 "2018-03-13T21:30:56Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![desperado](https://avatars.discourse-cdn.com/v4/letter/d/3ab097/32.png) [@desperado](https://forums.imgtec.com/u/desperado)
#### Post date: [March 13, 2018, 9:30pm UTC](https://forums.imgtec.com/t/driver-instrumentation-overhead/2602/1 "2018-03-13T21:30:56Z")

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Greetings,

I’'m currently trying to profile my GLES application on a PowerVR6 machine with a 1.7 driver. I measured the performance of glDrawArrays and measured about 800 small calls to malloc per call. Is that normal? Is it part of the driver instrumentation / logging?

Regards

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### Author: ![MartonTamas](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.imgtec.com/martontamas/32/297_2.png) [@MartonTamas](https://forums.imgtec.com/u/MartonTamas)
#### Post date: [August 10, 2018, 2:46pm UTC](https://forums.imgtec.com/t/driver-instrumentation-overhead/2602/2 "2018-08-10T14:46:57Z")

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Hi,

can you please provide more details about your machine?  
what is the exact device? what GPU exactly?  
what is the driver’s exact version? eg. 1.7@???  
what operating system do you use?

driver behaviour depends on what you are trying to do. Can you please provide details on what you are doing in OpenGL?

thanks,  
Marton