Date: Sat, 07 Jun 2014 09:05:29 -0400 From: Dutch Ingraham <stoa@gmx.us> To: freebsd-hackers@freebsd.org Subject: Fwd: Interrupt Overload Message-ID: <53930E19.8090603@gmx.us> In-Reply-To: <538A3432.5010303@gmx.us> References: <538A3432.5010303@gmx.us>
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Hi everyone - I am resending this as it is not appearing in the archives so I don't believe it made it to the general list-serv. (My apologies if it actually did make it.) -------- Original Message -------- Subject: Interrupt Overload Date: Sat, 31 May 2014 15:57:38 -0400 From: Dutch Ingraham <stoa@gmx.us> To: freebsd-hackers@freebsd.org Hi all: I hope someone here can help. I've tried the general community but no resolution was found. See "forums dot freebsd dot org slash viewtopic.php?f=3&t=46595". The problem is insanely high interrupts *only* while using xorg-server. For example, <systat -vmstat> or <vmstat -i> indicates a constant rate of 325000 to 326000 interrupts from irq16: uhci0. This is consuming about 30% of my cpu usage. All is normal in the TTY before starting X. The only usb devices attached are a mouse and keyboard; swapping them makes no difference; in fact, using a PS/2 keyboard or even detaching both the keyboard and mouse has no effect. The only thing I've found that works is suspending to RAM with the command <acpiconf -s 3>; upon waking the interrupts drop to near zero. My <uname -pr> is "10.0-STABLE amd64." Thanks for any information you can provide.
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