Different render time for the same project -AE 21 18.1

[gospyke]

Hi guys,

I 've got some question...

I made test with my project, i observe the time of my render change with this two situation :

•  When i restart my computer, my render time was 27m43s
• Without restart my computer, my render was 1m53s

My project was :

Duration: 29s

3D project (no C4D 3D)

Render with CUDA

Computer spec :

Z820

Windows 10 Pro

2x HexaCore Intel Xeon E5-2630, 2300 MHz (23 x 100)

32Go DDR3 1333

4 Slot // 8 Go DDR3 1600 (HMT31GR7CFR4C-PB)

Hewlett-Packard HP Z820 Workstation

GeForce GTX 1080 Ti

ATA TS256GSSD230S SCSI Disk Device

ATA ST1000DM003-9YN1 SCSI Disk Device

ATA ST500DM002-1BD14 SCSI Disk Device

Decklink  4K Extreme 12G

Have you got some explication why my render change like this.

PS: it's my first topic, i'm sry if i forgot something.

[Ali Jaber]

Maybe AE was using the already rendered disk cache to speed up your final render

[gospyke]

Even if i clean the render cache i keep a render time arround 1m50.

It's just when i restart the computer the render time was very long...