Questions tagged [performance-tuning]
Performance tuning is the process of modifying a system to improve its efficiency. This is also known as optimizing.
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2 (almost) identical Supermicro systems different performance
2 almost identical Supermicro systems
X10DRU-i+
and identical CPUs
2x 2697A per system
. Whatsmore the OS is identical as they are imaged with the same OS image of Windows 2016 server standard.
The ...
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Ansible performance issues on a huge group
So, I have this host group, which consist of 35k VMs.
Aaaand I need to run a playbook over it.
If it does matter - playbook is just a call for community role for installing node_exporter.
But I'm ...
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How to find optimum configuration in php.ini on openlitespeed?
I want to increase performance on pagespeed insights, but the problem is I don't know how to use all capacity of hardware on this server ! and I need your help please.
I think litespeed not using all ...
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Does the ZFS scrub support parallelization for increased performance, e.g., with a 64-core AMD Threadripper Pro?
I have a 24 drive zpool comprised of 3 RAIDZ1 vdevs running 8 Seagate Exos X18 16TB drives per vdev. This is on a Supermicro MB with a 64-Core (128 thread) AMD Threadripper Pro and 256GB ECC RAM.
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Disadvantages of using ZFS recordsize 16k instead of 128k
I'm using Proxmox on a dedicated server. For production I'm still using ext4, but I decided to start messing around with ZFS.
So I have created two separate ZFS storage pools with diffrent recordsizes:...
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How dangerous might it be - and what performance gains may be had - by turning vulnerability mitigations off on non-Internet facing servers?
When a virtual machine Linux host server is non-Internet facing and is used exclusively on a LAN and is using a relatively well tested distribution like Proxmox, how dangerous would it be to turn off ...
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Are there any big performance boost when upgrade from Ubuntu 16.04 to 22.04?
If I run the server as MySQL database. (Assume using the same MySQL version).
Are there any big performance boost when upgrade from Ubuntu 16.04 to 22.04?
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Is it necessary to ban malicious IP regardless of default firewall setting being deny/reject?
I'm on Linux and using fail2ban as the ban system. So far, it has collected and banned about 150K of malicious IPs, and I'm concerned and wondering if this will gobble a fair amount of resources. As I ...
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How to use SMB Multichannel over VPN?
According to this article SMB Multichannel can provide the following capability:
Increased Throughput - The file server can simultaneously transmit additional data by using multiple connections for ...
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How to minimize filesystem overhead
I have an application that uses a lot of space as essentially cache data. The more cache available the better the application performs. We're talking hundreds to thousands of TB. The application can ...
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Tune Linux & Nignx to handle 10k Connections @10Gbps Server
I just got a new 10Gbps server with 8 CPU Cores, 64GB RAM and 1TB NVMe
OS Centos 7.9 kernel 3.10.0-1160.36.2.el7.x86_64 also tried kernel-ml 5.13
SELinux is disabled.
firewalld and irqbalance stopped
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Tuning Linux router and server for better performance / solving single TCP connection slow speed
I have a simplest/common network architecture.
Web server sits behind router on local network. This router does iptables DNAT so port forwarding is achieved to web server.
Therefore, I'm able to ...
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Postgresql performance seems capped, cannot work out why
I'm setting up a new PG13 cluster, on ubuntu 20.04, virtual machine. The performance I'm seeing, via pgbench, is neither good nor bad. What I'm trying to work out is why it is what it is, and not ...
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Samba and luks encrypted disk together: Huge performance loss despite plenty of CPU resources, LUKS and samba alone works as expected
Setup:
SSD encrypted with luks aes-xts 512 bits (256 bits AES key), ext4 filesystem
dd write performance of 138 MB/s, CPU usage 97-100 %
dd if=/dev/zero of=testfile status=progress bs=32M count=128
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Reducing idle CPU usage of Windows Server 2019 Datacenter Core VM
I'm moving a few installations to Windows Server Datacenter Core 2019 running in KVM VMs on Linux hosts.
My first Windows VM has, when it's idle, a bit more than 32000 VM exits per second, half of ...
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