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Questions tagged [load-average]

In UNIX family Operating Systems, the load average represents the average system load over a period of time.

In UNIX family Operating Systems, the load average represents the average system load over a period of time. It conventionally appears in the form of three numbers which represent the system load during the last one-, five-, and fifteen-minute periods. It's calculated according CPU usage, Disk I/O, Network I/O.

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iowait Bound Server - Load Calculations & Process Scheduling

I have a script I'm writing that runs badblocks against a disk shelf full of drives and I'm trying to understand the server load that develops and at what point the server load is critical in this usecase. I have generally held to the general…
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Server is going down frequently (CPU 100% usage & load average over 3.5 mostly)

PHP Application hosted on Nginx server going down frequently. I checked using htop output and cpu usage is 100% and load average is more the 3. I tried restarting server and well as restarting PHP -FPM, but after the restart same condition occurs …
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How to tune linux machine in order to improve CPU load average and CPU utilization

We are working with huge hadoop cluster. We have 736 datanode machines and each node have 16 core X 2 thread. On some machines we saw CPU load average (98-128 for 5 min). After deeply investigation , we identify that : no HW problem no Disk…
shalom
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High wa but no IO usage

My VPS is having extremely high wa (around 90), but there is no IO usage taking place. htop: iotop: nethogs: What can be the problem here?
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Can a high load on a VPS be caused by the underlying infrastructure?

My VPS started to have random stints of high load (around 2-3, but the system becomes extremely slow, running ls takes like 30 seconds). I hadn’t changed anything on it, there was pretty much nothing but a Shadowsocks server running on it (with less…
HappyFace
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System load on OpenVZ hardware node - is it reliable?

I discovered something that surprised me. On OpenVZ hardware node there is a big load, let's say the load is 210 (it have many CPU cores available but 210 is still high as for this server). But the the hardware node is working fine. According to the…
Learner
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cifs/nfs server down , Client server high load average

I have an backup server in my AWS network. For maintenance i rebooted the server, after which it is not starting. My problem is all the servers were having backup server disk mounted through nfs (cifs) for storing the backups. Now the load average…
Raghu Reddy
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Can low NFS IO speeds effect client host performance when commands like tar is running?

We have NFS used over firewall which is limiting the performance. And we have this occasional scenarios of load increasing on the client host, whenever some huge IO operation is being done like tar. My understanding is that tar can cause congestion…
GP92
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du, find and load average

I have a complex directory structure with lot of small files in it. like: /opt/data/1000/45/32/2009/10/15/76543.zip When I launch a du or find on this directory (/opt/data/) my server load increases a lot (0,5 --> 25) and my system doesn't respond…
Matthieu
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High server load on KVM VPS

I have a KVM single core VPS optimized for hosting static content running only Nginx 1.13.8 with SSD and 1GB RAM with a hosting provider on a package of 100 Mbit/s unmetered bandwidth. OS in use is 3.10.0-693.17.1.el7.centos.plus.x86_64 The server…
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CPU wait state (RAM) stats?

As far as I understand, the wa % stat displayed by top is the I/O wait (i.e. hard drive). Is there a way to get similar wait stats, but for when the CPU is waiting for memory? My server is pretty much always 0.0 wa, because I've got an NVMe SSD, and…
BenMorel
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Find root cause for high load average happened in the past on a Linux server

I usually have Nagios agents installed on all our Linux servers so we get detailed report of what's happening on them in real-time and we also have historical data. However there is one RHEL 7 server on which we can't install a Nagios agent(or…
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Process CPU% doubles when paired with more, similar processes

We're running into an interesting conundrum that I'd appreciate some help troubleshooting. We have a service that has several processes. To distribute load, we can startup n-processes of most types. So for example, if we expect 200,000 connections…
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Discrepancy between "ps aux" and the 1-minute average server load

I am a Linux rookie, so I'm trying to figure out a discrepancy. The problem is that the 1-minute average load available in /proc/loadavg doesn't make sense when compared to the output of the "ps aux" command. For example, sometimes the 1-minute…
Jeff
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Could this process bring down the server?

I'm trying to understand why a server (AWS Ubuntu) sometime becomes unresponsive and eventually has to be restarted. While looking through top logs, I found a process that I think might be causing the issue. When it started the load went from about…
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