But is random/sequential read performance still good? even during saturated write performance ? if so the tradeoff could fit quite some applications Sent from myMail for iOS Friday, 6 March 2020, 14.06 +0100 from vitalif <vitalif@xxxxxxxxxx>: >Hi, > >Current QLC drives are total shit in terms of steady-state performance. >First 10-100 GB of data is written into the SLC cache which is fast, but >then the drive switches to its QLC memory and even the linear write >performance drops to ~90 MB/s which is actually worse than with HDDs! > >So, try to run a long linear write test and check the performance after >writing a lot of data. > >> Last monday I performed a quick test with those two disks already, >> probably not that relevant, but posting it anyway: >_______________________________________________ >ceph-users mailing list -- ceph-users@xxxxxxx >To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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