From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Barton-Davis Date: Sat, 18 Sep 1999 22:44:05 +0000 Subject: Re: [alsa-devel] Re: Bad MIDI performance : 10ms latency instead of the expected 1-1.5ms Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sound@vger.kernel.org >Im the only one that have problems with perfomance while receiving >midi data ? It is droping a lot of events. Oss don't drop so mush, >but alsa is useless. Is it SMP problem ? Low irq responce times ? I >have a SB PCI 128 and a hoontech and have the same problem with >both. (The hoontech is only avalible with alsa driver) I don't know if you're the only one, but certainly not all people with the hoontech's have this problem, even with SMP systems. I have a Hoontech 4D-NX and a Tropez+, and my MIDI response and functionality is as good as any MIDI hardware makes possible. I lose no events, even in the face of a lot of MIDI data transmission (e.g. a MIDI fader box being actively manipulated at the same time as a MIDI h/w sequencer and an external synth that sends active sense bytes every few msecs). You may have a bigger potential problem right now in terms of quoting irrelevant messages in their entirety and sending MIME-based mail to various email lists which have a majority of members who don't like it. --p