Originally posted by pal666
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Linux File-System Benchmarks On The Intel Optane 900P SSD
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Originally posted by nomadewolf View Post
Correct.
And maybe you should do that also...
I mean, if you already know that there are licensing issues... isn't it pretty much all said?...
Your entire post was a reply to, and repeat of, my post. Which is kind of strange. Why would you repeat something I wrote?
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Originally posted by Niarbeht View Post
I made that post because your post was literally quoting my post, and then effectively a sentence from my post.
Your entire post was a reply to, and repeat of, my post. Which is kind of strange. Why would you repeat something I wrote?
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I know it's not the newest post, but since it's about Intel optane 900p, it fits here better then other forums.
I ran some FIO benchmarks with Phoronix test suite on my server with Proxmox 5 and Ubuntu 16.04 LXC container.
Proxmox and container are running on Intel Optane 900p, 480GB in PCIe slot.
LXC showed signifficantly slower performance (208k IOPS vs. 94k).
HOST:
OPERATING SYSTEM: Debian GNU/Linux 9
Kernel: 4.13.13-1-pve (x86_64)
Compiler: GCC 6.3.0 20170516
OS on EXT4 filesystem.
Flexible IO Tester 3.1:
pts/fio-1.11.2 [Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory]
Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory:
Average: 813 MB/s
Deviation: 2.65%
Average: 208333 IOPS
Deviation: 2.64%
CONTAINER (Ubuntu 16.04 LTS):
Flexible IO Tester 3.1:
pts/fio-1.11.2 [Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory]
Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory:
Average: 369 MB/s
Deviation: 2.15%
Average: 94200 IOPS
Deviation: 1.75%
Also, benchmark results on bare metal host are app. 30% worse than those that Michael got with his tests.
Is anybody else noticing similar results?
Any advice what might be the cause?
Thank you.
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Originally posted by vladimir.mijatovic View Post
HOST:
OPERATING SYSTEM: Debian GNU/Linux 9
Kernel: 4.13.13-1-pve (x86_64)
Compiler: GCC 6.3.0 20170516
OS on EXT4 filesystem.
Also, benchmark results on bare metal host are app. 30% worse than those that Michael got with his tests.
Is anybody else noticing similar results?
Any advice what might be the cause?
Thank you.
Furthermore, some results may be impacted by the other hardware(it's running a beefy AMD EPYC with 32 cores 64 threads at 2.2GHz and 128GB of RAM.
You'll also notice that on the software side of things, he's running Ubuntu 17.10 with 4.14 kernel and GCC 7.2, you're running Debian/Proxmox with older kernel and GCC, the newer kernel could introduce improvements to things like filesystems and maybe the newer GCC has some optimizations that affect any compiled software? Debian/Proxmox might have some distro specific differences to Ubuntu as well.
Proxmox would be running some extra services and might have different config to suit running the host as a hypervisor more?(I dunno).
Can't really comment on the LXC container performance, Phoronix didn't run any of the benchmark via a container. Are you not seeing overhead(disk or others) using LXC with other applications?
You could look into your disk I/O scheduler(probably should be noop for the optane?), your CPU frequency governor(setting to performance might help if it's not).
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