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9 votes
1 answer
2k views

Low performance of encrypted SSD

I have a 128GB Somnambulist SSD. I know this brand is one of the worst. I measured the speed using GNOME Disk Utility, and it showed a read/write speed of 420/340. After encrypting the SSD with Debian ...
Daniel's user avatar
  • 363
3 votes
2 answers
399 views

Is SSD performance hindered by access to folder on SSD via symlink on conventional spinning rust HD?

I prefer to keep my OS and applications on one partition and /home/ on another. I intend to replace the current / drive with an SSD, then symlink /home/myuser/.local/ to a directory on the SSD because ...
dotancohen's user avatar
  • 16.1k
1 vote
0 answers
213 views

NVME slower on host than in VM

I first noticed some strange performance hits when I switched from Vagrant to Docker for my local development setup. After investigating why my databases were slower in this new environment, I came to ...
toyi's user avatar
  • 111
1 vote
0 answers
54 views

How can I frequently update a file without harming my disk?

I've got an i3 install on a laptop with an SSD. Currently I have it configured to save the WM layout on many different events. The tool that I'm using to do this is built on Python, and I'm just ...
wknr's user avatar
  • 11
0 votes
1 answer
2k views

Linux performance on SSD compared to Windows

A week ago I upgraded my main hard disk to an SSD (ADATA SU800) hoping to improve the general performance of my PC. I did a clean install of windows (10) and Linux (Pop-OS). I did notice a great ...
aldo vaz's user avatar
1 vote
0 answers
586 views

Alternatives to dd to read/write to a disk?

I'm using cp to read/write from an SSD drive but is not fast enough. Then I used dd, which is fast, especially with the drive unpartitioned. But I ran into errors like there is no space left on ...
Joan's user avatar
  • 119
0 votes
3 answers
3k views

NVMe Performance not all that good

Just got this Team Force Cardea Zero NVMe PCIe Gen4 drive. It's performance isn't what was promised. They claim write speeds of 4,400 but I am only seeing 1,500 $ dd if=/dev/zero of=/tmp/test2.img ...
Peter Prographo's user avatar
2 votes
1 answer
97 views

How to speed-up programs launch with my ssd?

I have 2 disks on my machine: ssd and hdd. / mount point is on ssd, /home is on hdd. C:/ on my Windows 10 is on ssd, too. It seems to me that some programs (like Chromium web browser) launch much ...
Victor Gorban's user avatar
2 votes
2 answers
3k views

NVMe disk shows 80% io utilization, partitions show 0% io utilization

I have a CentOS 7 server (kernel 3.10.0-957.12.1.el7.x86_64) with 2 NVMe disks with the following setup: # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT nvme0n1 259:0 0 477G 0 ...
mike's user avatar
  • 105
0 votes
1 answer
108 views

mv command for many nonexistent files, does it wear off the destination disk at all?

I am trying to continuously move many files (~ 10 000 each minute) from /ramdisk to normal /ssd , but not all files are there. When the mv /ramdisk/file55 /ssd/file55 fails because source is not ...
adrianTNT's user avatar
  • 603
0 votes
1 answer
685 views

What is best parition format and raid setup for millions of small files? [closed]

If I have millions of small files distributed by folders, what would be the best parition format and what raid setup in order to manage them as fast as possible ? E.g search in all files, find files ...
adrianTNT's user avatar
  • 603
1 vote
1 answer
829 views

How to deal with blocking I/O reducing the performance to a crawl?

I have a computer which is experiencing some serious I/O issues. Software: Kali-rolling, Linux x86-desktop-1 4.12.0-kali2-amd64 #1 SMP Debian 4.12.13-1kali2 (2017-10-03) x86_64 GNU/Linux. But I've ...
AlphaCentauri's user avatar
1 vote
0 answers
129 views

NMVe SSD Fedora Throughput Tests too High

I am testing throughput of a Samsung 950 Pro SSD Card which uses NVMe protocol. My current method of testing is to mount a file system on a partition and write a file of size X bytes to the file ...
John Frye's user avatar
1 vote
3 answers
138 views

Will very large write/deletes affect performance of SSD?

Suppose I have a 512gb SSD on a Macbook Pro. I then want to temporarily (for a few days) store 300gb of content on that SSD. Then that 300gb will be deleted. If done multiple times, would this ...
newapartment's user avatar
0 votes
1 answer
90 views

64GB Debian 8 Server, Do I need SSD?

I have a Debian 8 server with following config: Quad Core E3-1270v5 64GB RAM 2x4TB SATA Disks The server uses nginx 1.10 and redis to deliver files to clients. My question is since newrelic shows my ...
Server2016's user avatar

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