Questions tagged [iops]

111 questions
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How to test is hardware ssd-cache work?

We have server with hardware raid controller (Adaptec ASR71605Q). It has 10 sas HDD, 2 SSD for cache and 1gb onboard cache ram. On server installed ESXi. On ESXi I'm start Linux, create 2Tb disk for tests. And now i need to test and ensure, that…
easy_john
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Raid0 IOPS poor performance

I've set up 8x500gb disks in raid0 on an EBS optimized EC2 instance and I ran iops.py to check the speed, but it seems really slow. Does anyone know if this is normal speeds for raid0? I'd think I'd be getting IO/s over 1000 more or less…
Mackwerk
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SSD IOPS inquire

I have question about IOPS For example is there difference in IOPS if the SSD was ( sata 2.5 or M.2 sata or M.2 M-key nvme ) i know sata interface = 600MB M.2 sata = 600MB m.2 M-Key nvme = 2000MB But I am asking about IOPS of them same or there is…
BIQ
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less IOPS number but better READ/ WRite performance

I tried measuring virtual disk performance using bonnie++. Case 1 result : Using uid:0, gid:0. Writing intelligently...done Rewriting...done Reading intelligently...done start 'em...done...done...done... Version 1.03e ------Sequential…
kumar
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How to configure Fio to a more accurate result of IOPs

I am using fio to test how much iops my server can offer. My conf file says to write a 20GB file and read it. THe results show iops=27291. But the test last only 10 seconds. I wonder if the test last 2 hours for example, I would have a more accurate…
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Google compute - Less vCPUs high IOPS vs More vCPUs low IOPS

My Postgresql databases are running on Google compute instances N1 with custom(26 vCPUs, 52 GB memmory) with a pessistent ssd disk 1.2TB . This setup is way underused, but keep the Read IOPS under 3k. So we reduce the setup to custom(20 vCPUs, 40…
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