![]() |
Virmach VPS 9 (Atlanta) - My Dream VPS! - Printable Version +- Post4VPS Forum | Free VPS Provider (https://post4vps.com) +-- Forum: VPS Discussion (https://post4vps.com/Forum-VPS-Discussion) +--- Forum: VPS Reviews (https://post4vps.com/Forum-VPS-Reviews) +--- Thread: Virmach VPS 9 (Atlanta) - My Dream VPS! (/Thread-Virmach-VPS-9-Atlanta-My-Dream-VPS) Pages:
1
2
|
RE: VPS 9 (Atlanta) - My Dream VPS! - fChk - 06-12-2020 @sohamb03 Thanks for your patience and swift responses!... Rather rare in this Forum! :-) So, here is my comments for your storage-related results. I'll still be asking for few more inputs at the end of this post. Code: [sohamb03@google ~]$ ./bench.sh -io This is OKay-ish compared to the previous 802.333 MB/s. @deanhills' Dallas VPS-9 scored 535 MB/s for his DD's buffered write speed. Thus, you effectively take the cake :-) By the way, why not replace the "Disk Speed" label in your script for what it is really; ie dd's buffered write speed (with 64K block-size *1024.) OR, if you don't want to mention dd, just "Buffered sequential write speed". Disk speed leave the casual user of your script clueless, especially if he can't "read" Bash script syntax. Code: [sohamb03@google ~]$ ./disk-speed-beta.sh Ok!.. here you have increased the block size to 1M instead of 64K, hence the difference in the write speed (662 MB/s vs 813 MB/s.) It always increase when doing a throughput seq. write test, but this jump is a bit off! For dd's read speed, we don't have published data in this forum to compare them with, except mine that I didn't publish yet; but I'm using 64K block-size (same as in the write test.) So the cache read is very conservative, but the buffered read is GREAT if it doesn't change too often. Phoenix-VPS-9 fluctuates between 1.3 GB/s as an all-time high and 115 MB/s as all-time low, when using 'none' as the guest I/O Scheduler [Yes! there is this too as yet another factor to keep in mind!] Quote:(PS: Here I encountered a strange problem. I'm not an expert at all this; since I don't deal with hardware at all. For some reason, my system seems to be missing "/dev/sda" and I've the least idea why, so I performed the upcoming tests on "/dev/loop0". No idea if that makes a difference but nevermind. If I were to make a wild guess, I got CentOS 7 installed from ISO since I needed the default partitions for some purpose ... maybe that's why.) I think, you can remove this as of now, given that you do know WHY now!.. Leaving it there adds to the confusion of the casual reader. Besides, the only reason why you didn't know about it is that you were lacking knowledge as to how Linux kernel manages block devices and how loop devices via loop-mounted filesystem relate to them. For the HDPARM results, see for yourself how they compare with the already published data on the forum: Code: ---------------------------------------------------------------- Helas, the economic logic make me lean more towards the second hypothesis. For the IOPing: Code: ----------------------------------------------------------------------- For the latency, I didn't include your results as they were performed inside the loop-mounted /tmp folder. I need either /dev/vda or your sudoer home directory (directory's latency with Ioping is a lot faster than the block device; and the results in the table above are the ones done from folders.) Anyway, what I'm sure about at this point is that your VPS has something unusual (compared to the other published data here) configuration-wise. So, to complete the picture, can you provide the following bits of information: Code: ioping -c 15 /home/mysudoer That should be all :-) (06-11-2020, 04:11 PM)sohamb03 Wrote: BTW, here's something I wanted to ask. As I said, I'm more into software than hardware, hence, I can't make out why the sequential rate is so high on /tmp. Can you please explain to me?Loop-mounted devices are dealt with locally at your VPS's kernel level hence the high performance. Your virtual disk is a virtualized block device that involves the entire Host/KVM/QEMU stack communicating via VirtIO device drivers. It's a thick multi-layers interface that penalize both the latency and the throughput performance, depending on how the caching type and the I/O mode is set by the deployer. Starting next-weekend, I'll have more time available and, hopefully, will start a series of threads/posts where I'll lay out my understanding to this whole virtualization thing, while publishing my own VPS-9 data and trying to make sense of them as far as I can. The motivation of all this is that I've noticed that all the review section is way too cheerfull and not as objectif as I would like it to be--with the exception of some notable ones of course. Also, people's lack of the relevant knowledge generally contributes to a misleading way of interpreting the data... That has to change... I hope... RE: VPS 9 (Atlanta) - My Dream VPS! - humanpuff69 - 06-12-2020 it used to be my dream vps to when i first on this forum . i apply it on june 2017 and i got the Phoenix location (not to be confused with agus indihome package . it is a city in arizona) . and it worked great . never suddenly shut down but at early 2018 i fail to get 20 post and dropped my vps 9 but i get it again in the next giveaway but i got the seattle one . the seattle one sometime suddenly shut down and i need to contact the admin to turn it back on when i use VPS 9 i use when it still use OpenVZ Virtualization . due to eol of openvz 6 they switch it to KVM Lite . i did a stupid thing on vps 9 before . i try to upgrade to ubuntu 18.04 and what i ended up is bricked the system and request for reinstall . luckily vps 9 already use KVM so no worry about that problem . but i already change my vps to vps 5 RE: VPS 9 (Atlanta) - My Dream VPS! - Sn1F3rt - 06-12-2020 Thanks @fChk. (06-12-2020, 10:59 AM)fChk Wrote: So, here is my comments for your storage-related results. I'll still be asking for few more inputs at the end of this post. Actually I did another test inside of my sudo-ers home directory .. and the results are fluctuating by a bit again. ![]() Code: [sohamb03@google ~]$ ./bench.sh -io (06-12-2020, 10:59 AM)fChk Wrote: By the way, why not replace the "Disk Speed" label in your script for what it is really; ie dd's buffered write speed (with 64K block-size *1024.) OR, if you don't want to mention dd, just "Buffered sequential write speed". Disk speed leave the casual user of your script clueless, especially if he can't "read" Bash script syntax. Yeah, I've implemented that for now, but I'll be integrating disk-speed-beta.sh into the main benchmarking script soon .. so that'll clearly differentiate between what's what. (06-12-2020, 10:59 AM)fChk Wrote: I think, you can remove this as of now, given that you do know WHY now!.. Leaving it there adds to the confusion of the casual reader. Besides, the only reason why you didn't know about it is that you were lacking knowledge as to how Linux kernel manages block devices and how loop devices via loop-mounted filesystem relate to them. Removed it .. and yeah now I know what they are, thanks to the detailed explanation by you and HR. :-) And now .. the other results that you wanted: Code: [root@google ~]# ioping -c 15 /home/sohamb03 Code: [root@google ~]# ioping -c 15 /dev/vda Code: [root@google ~]# cat /sys/block/loop0/loop/backing_file Code: [root@google ~]# cat /etc/fstab Code: [root@google ~]# lscpu Code: # Had to install `pciutils` for this one Code: [root@google ~]# cat /sys/block/vda/queue/scheduler Code: [root@google ~]# egrep 'MemTotal|MemFree|Buffers|^Cached|^Swap|Huge' /proc/meminfo Code: # Yeah, tuned is running Code: [root@google ~]# tuned-adm active That's all. Again, thanks a lot for the explanations ... really appreciate! If you need any other information, feel free to tell me. ![]() Regards, RE: VPS 9 (Atlanta) - My Dream VPS! - fChk - 06-14-2020 @sohamb03 All clear!.. Nothing in your input is unexpected, except, may be, the buffer + cache values that are unusually high compared to what I get: Code: Buffers: 1755968 kB Worth investigating further by checking the Linux kernel's virtual memory (VM) subsystem, ie /proc/sys/vm/. But, I won't do it. (06-12-2020, 02:06 PM)sohamb03 Wrote: Yeah, I've implemented that for now, but I'll be integrating disk-speed-beta.sh into the main benchmarking script soon .. so that'll clearly differentiate between what's what.Don't forget to add dd's direct write and synchronous write tests too. (06-12-2020, 10:59 AM)fChk Wrote: Starting next-weekend, I'll have more time available and, hopefully, will start a series of threads/posts where I'll lay out my understanding to this whole virtualization thing, while publishing my own VPS-9 data and trying to make sense of them as far as I can.Unfortunately, something came up and I won't be able to continue posting in this forum. Phoenix-based VPS-9 will be restituted by the end of the month as a result. Good luck to you all! RE: VPS 9 (Atlanta) - My Dream VPS! - Sn1F3rt - 06-14-2020 Oh well, that's sad to know @fChk that you will be temporarily unavailable. I hope you can sort out whatever problems you are facing soon, and come back to post on the forums. I do not know what exactly you are looking for in `/proc/sys/vm/`, so I'll wait for your next reply. Honestly, I enjoyed this discussion with you and would like to continue it in the future whenever possible. Again, my best wishes for you! ![]() RE: VPS 9 (Atlanta) - My Dream VPS! - fChk - 02-21-2021 (06-11-2020, 01:53 PM)ikk157 Wrote: It specially caught my attention that you mentioned that Deanhills informed you that the previous holder of VPS 9 Seattle had negative feedback on it (never knew that to be honest). That, if anyone here doesn’t already know, is the same VPS i had currently. I have to say that you're wrong!.. and here is why? You and the previous VPS older are both located in Seattle, but ever since the transition to KVM, your KVM VPS has nothing to do with @Golden's OVZ-based VPS 9 Virmach Seattle. So, whatever issue you have has nothing to do with his own sets of problems. i've just checked that review and it looked like a misconfig of the VPS from the start: Code: System Info Starting from using a 32Bit OS template (on a 64Bit VPS host!!) but recognizing 8GB RAM nevertheless, which point to the possibility of PAE being enabled. Just from this fact alone, I would say that the OVZ-based Seattle VPS-9 needed a 64-bit template re-install from the get go. And if you pay attention to that OVZ VPS host's processor, you would note that it was an Intel® Xeon® CPU E5-2620 v3 @ 2.40GHz, while your own KVM-based Seattle VPS has : Intel® Xeon® CPU E5-2670 v2 @ 2.50GHz. Conclusion: It's not even the same VPS host that's used, let alone the fact that an OVZ-container has nothing to do with a KVM-VM performance-wise when running inside the same VPS host! RE: VPS 9 (Atlanta) - My Dream VPS! - Sn1F3rt - 02-28-2021 (02-21-2021, 12:58 PM)fChk Wrote: Starting from using a 32Bit OS template (on a 64Bit VPS host!!) but recognizing 8GB RAM nevertheless, which point to the possibility of PAE being enabled. Yep, it was really pathetic to see that review I wonder how he was complaining of issues when he was using a 32 bit OS architecture. I wonder if that VPS would every perform well, just like you said on a 64 bit VPS host. Nevertheless, this post is to let everyone know that VPS 9 Atlanta has been performing really well, I had months of uptime until a OS reinstall a month ago and a network issue which required a reboot, about a week ago. Still it's performance is unmatched and perfectly suitable for my use case, and all my applications are performing really well on this beast. A shout out to VirMach too! ![]() RE: VPS 9 (Atlanta) - My Dream VPS! - xdude - 02-28-2021 (02-28-2021, 11:01 AM)sohamb03 Wrote: Yep, it was really pathetic to see that review I wonder how he was complaining of issues when he was using a 32 bit OS architecture. I wonder if that VPS would every perform well, just like you said on a 64 bit VPS host. That's good to hear! Are you running a web server on that? I wonder how many of these VPS9s are used as web servers. Right now I have the Seattle servers and trying to get running things with CyberPanel. I'm getting all sorts of problems which I haven't had before. RE: VPS 9 (Atlanta) - My Dream VPS! - Sn1F3rt - 02-28-2021 (02-28-2021, 11:14 AM)xdude Wrote: That's good to hear! Are you running a web server on that? I wonder how many of these VPS9s are used as web servers. Right now I have the Seattle servers and trying to get running things with CyberPanel. I'm getting all sorts of problems which I haven't had before. I run a heck lot of things on the VPS, web server for sure. It houses some of my docker applications, then a Xolentum seed node about 8 Discord bots, a music node for my bot. Then there's VestaCP the panel I use (I use the CentOS 7 fork btw https://github.com/madeITBelgium/vesta) so Nginx with Apache, all of my beta websites house on that server, and a lot more. With so many things though my RAM usage is about 50-80% and CPU stays below 50%. Also, I have a 8 Gb swap RAM mounted which helps with compiling one of my Docker applications since it needs more than 8 GB of RAM to compile one of the files. ![]() |