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On Mon, May 4, 2009 at 4:21 PM, Victor Denisov wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hello, > > Since my node autoupdated to 1208, my system's performance degraded so > much as to render it completely unusable while Freenet is running. I > can't perform simplest tasks, such as surfing or typing a document, as > switching between tabs in Opera can take 10+ seconds and delay between > typing a letter and it showing up in Word can be several seconds as > well. Anything more stressing (such as running a game or developing an > application) is simply not possible. > > - From what I can see, the reason for this is that Freenet makes hundreds > of small disk i/o ops per second, basically blocking the OS from > accessing the hard drive for swapping and such. > > The above is definitely affected by the queue size. First, I tried > adding ~ 100 random files from Thaw when the node first updated, but > hadn't had the patience to wait for the request to complete (I think I > waited at least 20 minutes, perhaps more - with the system being nearly > paralyzed by the constant HDD thrashing). With just 3 or 4 files being > put in the queue the system starts to stutter noticeably, provided that > files start downloading and not hang at 0%. The only time when I can run > Freenet as a real background app is when I don't have any files in the > queue and FMS isn't running (which seems more or less pointless to me :-(). > > My system is set up as follows: > > AMD Athlon 64 X2 6000+ > 4 Gb RAM > 2x250 Gb 7200 rpm SATA2 HDD (mirror via mobo's built-in nVidia 570 RAID > controller) > Windows XP x64 > Java 1.6.0_07 64-bit > Of course, all the latest updates/patches/drivers, etc. > Freenet uses 5 Gb datastore on an unencrypted partition. > > Interesting thing I noticed was that Freenet significantly underutilized > the memory I provide it with. From 320 Mb heap memory available, I > hadn't seen it allocate more than ~ 80 Mb. > > Any thoughts on why this could be happening? I hadn't seen anyone > complain about the performance of 1208/09 yet, so it is probably > something with my machine :-(, but it beats me what it could be :-(. > > Regards, > Victor Denisov. > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.5 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFJ/05e1O5++4rTuI0RAmPbAJ9AMm6/Jz9j9r9RFNtmuI2V1CV4JgCghLy/ > CNBUL964LvIr+khl9fPvqwI= > =+5BE > -----END PGP SIGNATURE----- > _______________________________________________ > Support mailing list > Support at freenetproject.org > http://news.gmane.org/gmane.network.freenet.support > Unsubscribe at http://emu.freenetproject.org/cgi-bin/mailman/listinfo/support > Or mailto:support-request at freenetproject.org?subject=unsubscribe > I see it too. I have my node installed on it's own separate disk yet it stalls my quad-core system. It's as if the HDD controller chip is so swamped with disk ops that the OS and other apps are starved for resources. I'm seeing disk queues exceeding 500 vs the 40 my workgroup server hits. I also see Freenet using 2650 handles. That twice the next highest app which is my antivirus and 10x the average app. Heck, even the core Windows processes don't use more than 300-600 usually. Any recommendations for improving performance? Is BDB datastore any better (more stable or less disk IO) than salted-hash? I could try going back to that... - -- I may disagree with what you have to say, but I shall defend, to the death, your right to say it. - Voltaire Those who would give up Liberty, to purchase temporary Safety, deserve neither Liberty nor Safety. - Ben Franklin -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Use GnuPG with Firefox : http://getfiregpg.org (Version: 0.7.5) iEYEARECAAYFAkn/ossACgkQ4esu1mlKOs9OXwCgjCi0mhIFVesE+9RZkBh2pmrd XuIAn2FfFyf22zKyJjr+86qltyZRX42/ =iNxc -----END PGP SIGNATURE-----
