What do you consider appropriate maximum CPU load for PHP-FPM server with hyperthreading on and off?

Hello,

What do you consider appropriate maximum CPU load for PHP-FPM server with hyperthreading on and off?

With hyperthreading off, I consider the load linear, and consider about up to 70% safe, with a 30% safety margin.
With hyperthreading on, I noticed with experience and on prior google searches that the load % does not go up linearly and increases more rapidly at high values, so I consider up to 50% safe, since at above 50% the percentage increases more rapidly than under 50%.

But, I ask this because I may be to conservative as I noticed many Cloud autoscaling guides use 60~70% as a scale out threshold, and Cloud servers usually have hyperthreading on.
Personally I had always considered 60~70% dangerous.


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Dedicated for image/photo site

My budget is 150-200$ for one server, I can buy max 5 servers because my storage already nearly 10TB.

- I am currently using HDD storage - 2x2 TB HDD and make it become raid 0 to use full 4 TB HDD on /root disk, but photos load very slow and blur ( customers load, not servers load ) when servers had nearly 3 TB/4 TB.

So anyone recommend best dedicated for my budget and it can load fast?

Thank all for support!

See the used DNS in browser, or force load the web with a specific dns

Hi,

In last days I have a problem when try to load webs from a old server, I did a some configurations in DNS and I think is solved.

But I need test him to be sure. I have 3 DNS in the old server and I want check if all work correctly.

How can I check the used DNS in my browser when I open the web?. If cannot see this, Can I force load the web with a specific dns?.

Thank you very much. Have a nice day.

Sluggishness: Performance Dip

I have a 2xE5-2630L v2 @ 2.40GHz with 4xSSD H/W RAID-10. Technically that 24 cores at 2.6 Ghz.

I am experiencing performance dip, sluggish cPanel interface experience as soon as the load crosses 4 or 5

Higher load could be due to backups or higher traffic, same sluggishness is experienced. Wondering what the point to 2CPU, 24Core if dip happens after a load of only 4 or 5?

What should I be looking at or did I choose an incorrect config?

Trouble with Setting Up VPS Correctly on Ryzen Dedicated Server

Hi all,

Sorry if I posted this in the wrong forum; had trouble deciding whether to put it here or in the VPS forum.

I am running to some trouble with trying to properly expose a particular CPU topology to a VPS on a CentOS 8 server running KVM and Virtualizor, and was hoping you might be able to help. Not sure if I am doing something wrong and/or not understanding something.

I have an AMD Ryzen 5600X dedicated server with 6 cores and 12 threads. I created a VPS to which I am trying to assign 8 VCPUs (4 cores with 2 threads per core for a total of 8 threads). In Virtualizor, I set CPU units to 1000, CPU cores to 8, and CPU percent to 800. I then select the CPU topology option and specify 1 for sockets, 4 for cores and 2 for threads. CPU mode is host-passthrough. However, when using the lscpu command within the VPS or when checking /proc/cpuinfo, the topology shows up as 1 socket, 8 cores and only 1 thread per core. Does anyone know why this is? Would this affect performance within the VPS at all (that is, are applications not able to take advantage of hyperthreading, or does it even matter that the topology shows up this way)? The topology shows up as expected on an Intel E-2136 server that I tested on, so not sure what the difference is here.

Thanks for any tips you can provide!

A server of Hostmantis overloaded, 12H+

the server sgprm50 of Hostmantis Load Averages: 80-90 the whole day. hosted applications are stopped, even can't migrate to other servers, no solutions till now

Alibaba Cloud Server > Email SMTP server configuration help needed.

Hi, Guys we have a small Cloud Server @ alibaba cloud. We just found out SMTP is blocked for cloud serves. Is there anybody who can provide us a working solution? Apart from email accounts we have few web sites that use formmail too.
any help advice appreciated/

Thank you.

Liquidweb technicians removed my scripts and broke sites :)

Welp, so there were some CPU load issues yesterday and I asked for help. While I was sleeping, someone from Liquidweb thought it will be a good idea (without my permissions) to uninstall mod_pagespeed and reinstall something else.

Of course, the version I had before was not the same that they have reinstalled or something else went wrong and my sites are all have been broken ever since. Did they even bother to check if the mod pagespeed was functioning like it was supposed to? Of course not. The CPU load is still here except now I also have broken cache, images not loading, and a support reply of something along the lines of "nah, we can't install the version you want as we don't support it".

Thanks, guys.

proxychains can't load process....: No such file or directory

Im using proxychains-ng

Im getting the following error

proxychains can't load process....: No such file or directory


Do you have any idea how to solve it

Official WHT Server Benchmark (with UnixBench 5.1.2)

Please do not post your results if you use old Unixbench 4.x version. This thread is only for UnixBench 5.1.2, the latest UnixBench version, one that is SMP aware.

The old server benchmark thread in WHT is filled with non-sense results, most, if not all 136 pages of them. Part of the reason is, I believe, the version 4 of UnixBench is not meant to be used on the multiple CPUs/cores environment, pretty much standard on today's servers.

The old Unixbench 4.1-WHT variants produce poor results, especially on Xen environment.

Please do not post any further on that old thread. Do not contribute to further confusion caused by that. IMHO, most, if not all, results on that thread should be discarded.

This thread is meant to be the replacement. Please only post your test using UnixBench 5.1.2. I am posting the original un-modified version. Let's keep this original version in tact.

Simply execute the following command:

tar -zxvf unixbench-5.1.2.tar.gz
cd unixbench-5.1.2
make
./Run

or, if you want to disable file-copy tests, execute the following command (instead of ./Run):

./Run dhry2reg whetstone-double syscall pipe context1 spawn execl shell1 shell8 shell16

Please also note that this 5.1.2 version will make two runs. One run will test only 1 core (1 parallel copy). Another run will test all the available cores (e.g., 16 parallel copies for 8 CPUs with HT).

I am going to post the first "official" result.

Server: Dell PowerEdge R510, Dual E5520 (HyperThreading/Logical CPU DISABLED), 32 GB ECC DDR3 REG,

Code:
   BYTE UNIX Benchmarks (Version 5.1.2)

   System: localhost.localdomain: GNU/Linux
   OS: GNU/Linux -- 2.6.18-164.el5PAE -- #1 SMP Thu Sep 3 04:10:44 EDT 2009
   Machine: i686 (i386)
   Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
   CPU 0: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.7 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 1: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.6 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 2: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 3: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 4: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 5: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 6: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 7: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   09:59:33 up  3:15,  2 users,  load average: 0.10, 0.03, 0.01; runlevel 3

------------------------------------------------------------------------
Benchmark Run: Fri Feb 05 2010 09:59:33 - 10:22:49
8 CPUs in system; running 1 parallel copy of tests

Dhrystone 2 using register variables       11021090.5 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                     2283.3 MWIPS (6.6 s, 7 samples)
Execl Throughput                               1826.8 lps   (30.0 s, 2 samples)
Pipe Throughput                              672125.5 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                  81365.5 lps   (10.0 s, 7 samples)
Process Creation                               8635.2 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                   4118.9 lpm   (60.0 s, 2 samples)
Shell Scripts (16 concurrent)                  1180.4 lpm   (60.1 s, 2 samples)
Shell Scripts (8 concurrent)                   2002.9 lpm   (60.0 s, 2 samples)
System Call Overhead                        2805654.3 lps   (10.0 s, 7 samples)

System Benchmarks Partial Index              BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   11021090.5    944.4
Double-Precision Whetstone                       55.0       2283.3    415.1
Execl Throughput                                 43.0       1826.8    424.8
Pipe Throughput                               12440.0     672125.5    540.3
Pipe-based Context Switching                   4000.0      81365.5    203.4
Process Creation                                126.0       8635.2    685.3
Shell Scripts (1 concurrent)                     42.4       4118.9    971.4
Shell Scripts (16 concurrent)                     ---       1180.4      ---
Shell Scripts (8 concurrent)                      6.0       2002.9   3338.2
System Call Overhead                          15000.0    2805654.3   1870.4
                                                                   ========
System Benchmarks Index Score (Partial Only)                          751.1

------------------------------------------------------------------------
Benchmark Run: Fri Feb 05 2010 10:22:49 - 10:46:14
8 CPUs in system; running 8 parallel copies of tests

Dhrystone 2 using register variables       87401364.4 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                    17524.5 MWIPS (7.7 s, 7 samples)
Execl Throughput                              22554.4 lps   (30.0 s, 2 samples)
Pipe Throughput                             5382685.1 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                1849908.9 lps   (10.0 s, 7 samples)
Process Creation                              86373.6 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                  23144.0 lpm   (60.0 s, 2 samples)
Shell Scripts (16 concurrent)                  2405.8 lpm   (60.1 s, 2 samples)
Shell Scripts (8 concurrent)                   4812.1 lpm   (60.1 s, 2 samples)
System Call Overhead                        5699670.5 lps   (10.0 s, 7 samples)

System Benchmarks Partial Index              BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   87401364.4   7489.4
Double-Precision Whetstone                       55.0      17524.5   3186.3
Execl Throughput                                 43.0      22554.4   5245.2
Pipe Throughput                               12440.0    5382685.1   4326.9
Pipe-based Context Switching                   4000.0    1849908.9   4624.8
Process Creation                                126.0      86373.6   6855.0
Shell Scripts (1 concurrent)                     42.4      23144.0   5458.5
Shell Scripts (16 concurrent)                     ---       2405.8      ---
Shell Scripts (8 concurrent)                      6.0       4812.1   8020.2
System Call Overhead                          15000.0    5699670.5   3799.8
                                                                   ========
System Benchmarks Index Score (Partial Only)                         5215.7

Same server, with HyperThreading/Logical CPUs ENABLED

Code:
   BYTE UNIX Benchmarks (Version 5.1.2)

   System: localhost.localdomain: GNU/Linux
   OS: GNU/Linux -- 2.6.18-164.11.1.el5PAE -- #1 SMP Wed Jan 20 08:16:13 EST 2010
   Machine: i686 (i386)
   Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
   CPU 0: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.6 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 1: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 2: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 3: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 4: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.4 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 5: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 6: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.4 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 7: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 8: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 9: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.6 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 10: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.4 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 11: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.6 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 12: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 13: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 14: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.5 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   CPU 15: Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (4533.6 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, Intel virtualization
   11:32:24 up 2 min,  2 users,  load average: 0.09, 0.08, 0.03; runlevel 3

------------------------------------------------------------------------
Benchmark Run: Fri Feb 05 2010 11:32:24 - 11:55:40
16 CPUs in system; running 1 parallel copy of tests

Dhrystone 2 using register variables       10898006.5 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                     2265.2 MWIPS (6.6 s, 7 samples)
Execl Throughput                               1836.7 lps   (30.0 s, 2 samples)
Pipe Throughput                              675419.8 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                  84729.4 lps   (10.0 s, 7 samples)
Process Creation                               8720.0 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                   4076.6 lpm   (60.0 s, 2 samples)
Shell Scripts (16 concurrent)                  1370.5 lpm   (60.0 s, 2 samples)
Shell Scripts (8 concurrent)                   2160.2 lpm   (60.0 s, 2 samples)
System Call Overhead                        2759595.6 lps   (10.0 s, 7 samples)

System Benchmarks Partial Index              BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   10898006.5    933.8
Double-Precision Whetstone                       55.0       2265.2    411.9
Execl Throughput                                 43.0       1836.7    427.1
Pipe Throughput                               12440.0     675419.8    542.9
Pipe-based Context Switching                   4000.0      84729.4    211.8
Process Creation                                126.0       8720.0    692.1
Shell Scripts (1 concurrent)                     42.4       4076.6    961.5
Shell Scripts (16 concurrent)                     ---       1370.5      ---
Shell Scripts (8 concurrent)                      6.0       2160.2   3600.3
System Call Overhead                          15000.0    2759595.6   1839.7
                                                                   ========
System Benchmarks Index Score (Partial Only)                          758.7

------------------------------------------------------------------------
Benchmark Run: Fri Feb 05 2010 11:55:40 - 12:19:15
16 CPUs in system; running 16 parallel copies of tests

Dhrystone 2 using register variables       95169178.1 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                    29861.0 MWIPS (8.3 s, 7 samples)
Execl Throughput                              33699.1 lps   (30.0 s, 2 samples)
Pipe Throughput                             7363181.0 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                2543525.1 lps   (10.0 s, 7 samples)
Process Creation                             130941.4 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                  35122.8 lpm   (60.0 s, 2 samples)
Shell Scripts (16 concurrent)                  3302.9 lpm   (60.1 s, 2 samples)
Shell Scripts (8 concurrent)                   6429.4 lpm   (60.0 s, 2 samples)
System Call Overhead                        6630712.0 lps   (10.0 s, 7 samples)

System Benchmarks Partial Index              BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   95169178.1   8155.0
Double-Precision Whetstone                       55.0      29861.0   5429.3
Execl Throughput                                 43.0      33699.1   7837.0
Pipe Throughput                               12440.0    7363181.0   5919.0
Pipe-based Context Switching                   4000.0    2543525.1   6358.8
Process Creation                                126.0     130941.4  10392.2
Shell Scripts (1 concurrent)                     42.4      35122.8   8283.7
Shell Scripts (16 concurrent)                     ---       3302.9      ---
Shell Scripts (8 concurrent)                      6.0       6429.4  10715.6
System Call Overhead                          15000.0    6630712.0   4420.5
                                                                   ========
System Benchmarks Index Score (Partial Only)                         7219.1
~38.4% improvement with HT.

Post yours. Again, please disable disk I/O test. Use the command above.

PS: Thanks to John (JTY) for pointing me towards testing using the 5.1.2 version!

Google Cloud vs OVH [DDOS protection]

I have been looking for a new provider for some time now and Google Cloud crossed my path and I actually enjoy it a lot. Very easy to customize and choose to your preference.

I wonder about the protection though, I fiddled around with the Firewall which seems great but compared to OVH, how is the DDoS protection? Would it cost me money if an attacker launched an attack on me to consume bandwidth which leads to network costs for me? or how does it work? Would I feel any downtime for some seconds or is it like OVH where I don't feel any at all?

Secondly, which Google Cloud VM can compare to i7-7700k 32GB SSD?

Yours
FloodMachine