Re: Kernel Panic in SANDPOINT 5.99.64-GENERIC on DSM-G600
Charles Brown <[email protected]> Wed, 15 Feb 2012 14:07:04 +0100
| Newsgroups | gmane.os.netbsd.ports.sandpoint |
|---|---|
| Message-ID | <CAPA5q9YrFd3yd85k88arUg7C0mO1TNHjkW4-yKa_KyqqKShbYw@mail.gmail.com> |
Thank you very much Toru, this confirm my suspect... My unit is ready for the trashcan... :( 2012/2/15 Toru Nishimura <[email protected]>: > Hi, Charles, > > Thanks for detailed reports. I made some casual FTP test run on > my NAS and got the following results so far. > > NetBSD nas8245 5.99.64 NetBSD 5.99.64 (KUROBOX) #109: Sat Feb 11 10:46:39 > JST 2012 > cpu0 at mainbus0: 8245 (Revision 0.4), ID 0 (primary) > cpu0: HID0 0x90c000<DOZE,DPM,ICE,DCE>, powersave: 1 > cpu0: 195.12 MHz > > It receives 1giga file from Pen3 933MHz running NB5.1. The two > are housed in the same 100Mbps netgear switching hub, no GbE is > involved in this case. It's known that the PC can send/receive a > single FTP stream with wire-saturating 11MiB/s speed. > > ftp> put LARGE /dev/null > ... > 100% |**********************************| 976 MiB 4.76 MiB/s 00:00 > ETA > 1024000000 bytes sent in 03:25 (4.76 MiB/s) > > On the reverse direction, my NAS can swallow FTP stream some > slower. > > ftp> put LARGE /dev/null > ... > 100% |***********************************| 976 MiB 3.67 MiB/s 00:00 > ETA > 1024000000 bytes sent in 04:25 (3.67 MiB/s) > > These facts indicate the 195MHz CPU lacks the muscle to saturate > the 100Mbps pipe. Disk write to NAS case yields worse results. > > ftp> put LARGE hoy > ... > 100% |***********************************| 976 MiB 1.65 MiB/s 00:00 > ETA > 1024000000 bytes sent in 09:48 (1.65 MiB/s) > > wd0: <Hitachi HDS721680PLAT80> > wd0: drive supports 16-sector PIO transfers, LBA48 addressing > wd0: 76319 MB, 155061 cyl, 16 head, 63 sec, 512 bytes/sect x 156301488 > sectors > wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) > wd0(cmdide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA) > > The 7200rpm Hitachi drive operates in UDMA100 and is known > capable of 100Mbps FTP streaming with modern CPUs. > > Toru Nishimura / ALKYL Technology