disd@hubcap.UUCP (Gary Heffelfinger) (11/24/88)
From article <623@cord.UUCP>, by nsw@cord.UUCP (Neil Weinstock): > Well, mine show 512 and 536, respectively; I'll assume that I am in fact > running FFS. So, only one question remains: why haven't I noticed any > speedup? Would some kind soul be willing to mail me a copy of DiskPerf > (and/or DiskPerfA, DiskPerfB, whatever) so I can really figure this out > for sure? > > Also, can any users of the Overdrive/ST157N combination comment on the > speedup they have seen with FFS? It's not like I'm unhappy with the > performance I'm getting, I just want to make sure I'm getting everything > there is to be had (does that make sense? ;-). Makes complete sense. I'm wrestling with the same things you are. And I'm not finding good answers. Directory listings are roughly 2x faster. The block read/write numbers that DISKPERFA reports are not that much different between OFS and FFS. I am using version 1.3 of the ODutils program to low-level format the drive and I'm using the Overdrive.device and Overdrive.drives files that came along with the new ODUtils. (At least, I assume that they are the newest files.) These are supposed to be optimized for FFS. I suspect that I've just got something not-quite-right in my mountlist. But I've been tweaking it for several days now and I'm getting tired of reformatting. (Though, I've gotten quite fast at rebuilding the disk after each time. :-) I'm like you, though, I'm not at all unhappy, just wanting to get the most out of it that I possibly can. Gary -- Gary R Heffelfinger - Not speaking for Clemson University