Great then. Please be aware that tuned is doing a lot optimizations. In my case it was setting APM to low on sata links which reduced performance. Anyways tuned can be adjusted with proper settings. Read manual.
27.12.2016 12:28 AM "Ben Bullard" <[email protected]> napisał(a): I tried throughput-performance, desktop, and realtime and had same problem with all. Then I tried disabling tuned.service and that worked in that there are no longer drops or fluctuations in read speed under hdparm over 10 hour time period. Ben Bullard ben79 -------------------- OpenMandriva-QA Team On 12/25/2016 05:19 PM, Tomasz Paweł Gajc wrote: Dnia niedziela, 25 grudnia 2016 16:58:19 CET Ben Bullard pisze: Drive in question: Model Family: Crucial/Micron MX100/MX200/M5x0/M600 Client SSDs Device Model: Crucial_CT500MX200SSD4 Firmware Version: MU04 Ok, this problem isn't going away. TPG, Colin, Bero, or anyone what logs or test/commands in addition to omv-bug-report.log do I need to include for a bug report on this. Hard to say what may be the problem. Maybe it's related to aggresive APM on your SATA ports. tuned daemon may interfere here. take a look on: tuned-adm active then change to diffrent profile: tuned-adm profile throughput-performance and then run hdparm tests There was a kernel-firmware (20161225) update today I hoped would address this but it didn't. kernel-firmware has nothing to do with firmware with your disk. On my SSD Samsung EVO 840 on Lx 3.0 i got stable results: [root@lazur tpg]# hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 762 MB in 3.01 seconds = 253.56 MB/sec [root@lazur tpg]# hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 778 MB in 3.00 seconds = 259.29 MB/sec [root@lazur tpg]# hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 778 MB in 3.01 seconds = 258.63 MB/sec _______________________________________________ OM-Cooker mailing [email protected]http://ml.openmandriva.org/mailman/listinfo/om-cooker_ml.openmandriva.org _______________________________________________ OM-Cooker mailing list [email protected] http://ml.openmandriva.org/mailman/listinfo/om-cooker_ml.openmandriva.org
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