1
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Copying large file with robocopy during VMWare storage vmotion
It will obviously have a little impact on the performance, it will be a little slower, but otherwise it will have no impact.
How much slower depends entirely on the hardware and the abilities of your ...
- 25.1k
1
vote
Accepted
Identifying saturated disks on CentOS 8
The culprit was sda, the magnetic CentOS disk. Most of the evidence pointed there. As someone commented (and seems to have deleted), the wait times on sda, dm-0, and dm-1 look suspicious. Sure enough,...
- 141
1
vote
Strange behaviour of MySQL on Windows (CPU 100% with simple query)
Some composite indexes that will probably help:
g3hy2_social_stream_item: INDEX(target_id, context_type, d.created)
g3hy2_social_stream_item: INDEX(target_id, created)
g3hy2_social_stream_item: INDEX(...
- 2,558
1
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sshfs - howto view load and find bottlenecks
If you can run your application on your own (e.g. restart it), you could try with strace:
strace -f ./myslowapplication
and see what it tries to read(3) or write(3) and where it spends time waiting. ...
- 106
1
vote
Accepted
How do I know if SSD is the bottleneck in Linux?
Everything posted above implies the CPU is the bottleneck -not the SSD. Most tellingly the 576% CPU, which I expect means 5.76 CPU cores being consumed.
The problem appears to relate to MySQL - ...
- 6,302
1
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Limitations to using many SSDs in computing server
I was wondering if it is possible to have some kind of device to plug in a larger number
of SSD drives
Given that I have servers with up to nearly 80 (!) drive slots, this is not "a device", it is ...
- 51.9k
1
vote
Accepted
find bottleneck of a slow server centos
The output from free -h shows us that 80% of your memory is being used for things other than cache and buffers (1495 out of 1877). That is a quite high usage. Moreover only 202 is used for cache which ...
- 30.7k
1
vote
Accepted
hardisk or network bottleneck?
Based on provided information, I guess the problem is in the network speed Your peak at ~500 MB is the same as maximum throughput of your bonded network interface (4000 Mb).
The information about the ...
- 1,645
1
vote
Accepted
What constant throughput and linear respone time tells about the system?
If, at increasing load, throughput does not change, this generally means that your system is running at full capacity. If, on the other hand, a load increase brings added throughput (even if it costs ...
- 50.7k
1
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Is Quality of Service my ISP's responsibility?
There's no easy way to solve the problem you describe. QoS is largely about controlling packets going out of your network not so much coming in.
Most ISPs won't do a thing about QoS either because ...
- 175
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