I use the pulsar perf to test the service by the command: pulsar-perf produce topic1 -n 1 -t 10 -r 1000000, but the log shows that the Throughtput Produced just below 10000, i need to test the service by higher message rate, how can i do ?
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Please [don't upload text as image](https://meta.stackoverflow.com/a/285557/13447). Edit your question to contain all the information. Also see [ask]. – Olaf Kock Jun 29 '21 at 07:34
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ok, i have edited, do you know why the rate of msg is just below 100000 even if i use the -r 1000000 ? – hezonglin Jun 29 '21 at 09:21
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The message rate will be limited by the capabilities of the hardware on which you run `pulsar-perf`. – Stephen C Jun 29 '21 at 09:47
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the pulsar perf will set the rate according to hardware? so which one , the memory or cpu or others ? – hezonglin Jun 29 '21 at 10:03
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If you want to make sure you are using the command correctly, you can use a extra low limit, for instance 100 and then 1000.
If you see the expected behavior, and it hits the ceiling at exactly 10000, it is likely a software limit.
If you see it around 10000 it is likely a hardware limit. Check which resource of your hardware is utilized fully (cpu, disk, memory, network) and try it on a box with more resources.
Dennis Jaheruddin
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