PCIe NVMe SSD usage question

my electronic literacy is not terribly high

curious if having a video rendering program writing to the very SSD it's "reading" the video file that it is rendering or compressing, if that hinders or slows that SSD's read/write rates.

I've always rendered, reading the original video file on one SSD, and then writing the rendered copy to another SSD. Both SSDs are what i call "work table" drives, not the OS SSD. Recently noticed on of my programs had somehow changed directory instructions so it was rendering to the very SSD the original file was located on. I hadn't seen any increase or reduction in rendering times.

This was on the computer set up described in my signature. I then tried it on another system with a 4 core i7-4790 w/16 gb of ram and ran a video file first writing from one SATA SSD to a 2nd SATA SSD, I Then tried rendering it to the very SSD the orig file was located on - and saw no difference in rendering time

Have i been assuming wrong all these years. Is there any reason i should use two different SSDs for rendering, or am i okay staying with one?

FYI, while rendering on the main system in my sig, with 8 core cpu, cpu usage is showing 85-92% load
 
Solution


As with any drive, reading and writing at the same time is 'slower' than one or the other.
Does it reduce the SSD lifespan? No.

USAFRet

Titan
Moderator
I have multiple SSD's.
Performance is not really changed vs being on a single drive.

But I much prefer different drives for different uses.

All SATA III drives:
SSD 1 - (500GB) OS and applications
SSD 2 - (250GB) photo work
SSD 3 - (250GB) CAD and video work
SSD 4 - (960GB) - games and all the stuff that doesn't fit in the others.
SSD 5 - (120GB) cache and scratch space for #2 & 3, and very temp storage.
 

USAFRet

Titan
Moderator


As with any drive, reading and writing at the same time is 'slower' than one or the other.
Does it reduce the SSD lifespan? No.
 
Solution