Pro tip: Defragmenting only works on spinning drives because it puts the data nearer to the spindle so seek times are shorter. Solid-state drives wear out faster if you defragment them, since every write involves a little bit of damage.
Pro tip: That tip has been obsolete for a long time now.
Running the defragmentation tool on an SSD in Windows optimizes the drive (pretty much just running TRIM). It’s not possible to defragment an SSD in Windows (maybe there is a way using some register hack but that’s out of scope)
Random reads are still slower than sequential in SSD. try torrenting for a year on SSD, then benchmark then defragment then benchmark. it will be very measureable difference. you may need some linux filesystem like XFS as im not sure if there is a way to defrag SSDs in windows.
That’s because the drive was written to its limits; the defrag runs a TRIM command that safely releases and resets empty sectors. Random reads and sequential reads /on clean drives that are regularly TRIMmed/ are within random variance of each other.
Source: ran large scale data collection for a data centre when SSDs were relatively new to the company so focused a lot on it, plus lots of data from various sectors since.
According to the man(8) page, it will avoid touching any blocks that have the chattr -f flag set, which is XSR_XFLAGS_NODEFRAG… So I think if the docs are still accurate to the code, yes.
Pro tip: Defragmenting only works on spinning drives because it puts the data nearer to the spindle so seek times are shorter. Solid-state drives wear out faster if you defragment them, since every write involves a little bit of damage.
I was about to throw hands, but then I learned something new about how SSDs store data in pre-argument research. My poor SSDs. I’ve been killing them.
No you didn‘t. All somewhat current operating systems do not defrag SSDs, they just run TRIM and it does not kill them.
Most modern OSeses do defragmentation on the fly and you don’t really need to do it anymore.
Which makes me sad because I have so many memories of watching a disk defragmenter do its thing from my childhood.
I loved watching disk defragmenter doing it‘s job as a kid. I miss it too!
Here’s a little game I made because I missed it too. https://dbeta.com/games/webdefragger/
That was super cool.
Thanks. It was a silly toy, but it scratched an itch, and was good for at least one chuckle.
It’s just Paint behind it, isn’t it?
I’m guessing you were making a joke, but the real answer is it is a Godot tile map.
Pro tip: That tip has been obsolete for a long time now. Running the defragmentation tool on an SSD in Windows optimizes the drive (pretty much just running TRIM). It’s not possible to defragment an SSD in Windows (maybe there is a way using some register hack but that’s out of scope)
Random reads are still slower than sequential in SSD. try torrenting for a year on SSD, then benchmark then defragment then benchmark. it will be very measureable difference. you may need some linux filesystem like XFS as im not sure if there is a way to defrag SSDs in windows.
That’s because the drive was written to its limits; the defrag runs a TRIM command that safely releases and resets empty sectors. Random reads and sequential reads /on clean drives that are regularly TRIMmed/ are within random variance of each other.
Source: ran large scale data collection for a data centre when SSDs were relatively new to the company so focused a lot on it, plus lots of data from various sectors since.
I’m pretty sure running XFS defrag will defrag without trimming no matter the type of block device.
Edit: yea you might actually be right. I Played with my fstab too much years ago, and never thought of that untill now
I understood that XFS automatically mounted SSD’s with XFS_XFLAG_NODEFRAG set? Is this not the case?
yea you might actually be right. I Played with my fstab too much years ago, and never thought of that until now
But does that flag affect manually running xfs_fsr?
According to the man(8) page, it will avoid touching any blocks that have the
chattr -fflag set, which is XSR_XFLAGS_NODEFRAG… So I think if the docs are still accurate to the code, yes.A lot of ifs in that assumption.