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#1 2018-10-31 04:02:03

anotherAlex154
Member
Registered: 2018-10-20
Posts: 7

[SOLVED] Read from root partition is half the speed of NTFS partition

So my laptop hard drive is new (like a couple months new) and I have dual booted Windows 10 with Arch linux with a 1.3T shared partition between them and 250G for each OS. Arch is entirely on one partition, the root one with no home partition. I had a big oops the other day with the kernel not shutting down. After a couple of minutes watching some unmounts fail, I decided to hard reset. Afterwards, every thing was painfully slow, and it turned out my hard drive speed had dropped to 10 mb/s. I tried doing fsck on it from a usb and used e4defrag to hopefully fix things.

$ sudo fdisk -l

Device          Start        End    Sectors  Size Type
/dev/sda1        2048     534527     532480  260M EFI System
/dev/sda2      534528     567295      32768   16M Microsoft reserved
/dev/sda3      567296  524855295  524288000  250G Microsoft basic data
/dev/sda4   524855296 3381716991 2856861696  1.3T Microsoft basic data
/dev/sda5  3906007040 3907028991    1021952  499M Windows recovery environment
/dev/sda6  3381716992 3415271423   33554432   16G Linux swap
/dev/sda7  3415271424 3906007039  490735616  234G Linux root (x86-64)

Partition table entries are not in disk order.
$ sudo hdparm -t /dev/sda7

/dev/sda7:
 Timing buffered disk reads: 190 MB in  3.02 seconds =  62.83 MB/sec

The speed is better but:

$ sudo hdparm -t /dev/sda4

/dev/sda4:
 Timing buffered disk reads: 398 MB in  3.01 seconds = 132.23 MB/sec

Not sure what to do from here. /:

Last edited by anotherAlex154 (2018-11-12 17:14:34)


"Hey hey hey, everyone part like the Red Sea, it's me" -- Shaggy Rogers

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#2 2018-11-09 22:50:13

anotherAlex154
Member
Registered: 2018-10-20
Posts: 7

Re: [SOLVED] Read from root partition is half the speed of NTFS partition

Lol turns out i put 1.3T of f*ck all in the middle of my hard drive. The position of my root was actually at the end of my disk, which proved as a major factor when doing some extensive testing with hdparm. Then I had to kill baloo. My laptop runs better than yours now. (;


"Hey hey hey, everyone part like the Red Sea, it's me" -- Shaggy Rogers

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#3 2018-11-09 23:15:21

Trilby
Inspector Parrot
Registered: 2011-11-29
Posts: 20,294
Website

Re: [SOLVED] Read from root partition is half the speed of NTFS partition

anotherAlex154 wrote:

My laptop runs better than yours now. (;

Mine has an SSD, so I doubt it tongue

But if this is resolved, please edit your first post to prepend "[SOLVED]" to the title.


"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman

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