Date: Sun, 28 Sep 2008 13:29:57 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Danny Do <danhdo@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Hard disk bottle neck. Message-ID: <20080928132823.Q96036@wojtek.tensor.gdynia.pl> In-Reply-To: <00d101c92154$691f53c0$3b5dfb40$@com> References: <00d101c92154$691f53c0$3b5dfb40$@com>
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> Server Info: > FreeBSD 6.2 > Apache 2.2.9 > > DELL PowerEdge 1850 > 2GB RAM (only 184MB is active) so what's up with other 1.8GB? > 6x300MB SCSI 10K RPM RAID5 300MB disks at 10K? there was such? > Gigabit Ethernet Connection > > My server can output NO MORE than 60Mbps (read only). you mean Mbps or MBps > > The bottle neck is the hard disk. If I use ONE connection to download file > from my server, the speed can go up to about 400Mbps. > > If I let visitors download using multiple connections, the server cannot > output more than 60Mbps. > > My service is similar to rapidshare/megaupload, I am wondering how they > configure their servers? > patch /usr/src/sys/sys/param.h #ifndef DFLTPHYS #define DFLTPHYS (1024 * 1024) /* default max raw I/O transfer size */ #endif #ifndef MAXPHYS #define MAXPHYS (1024 * 1024) /* max raw I/O transfer size */ #endif #ifndef MAXDUMPPGS
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