Hello to the Sysnative folk
This is my first post. I have enough knowledge to be 'dangerous'. Maybe a little more. As an audio engineer, I have optimized several Lenovo T series laptops for real-time recording over the years (up to 128 tracks over Madi). However, my latest, a HP Zbook G5 and the first on Win 10 has me completely stumped.
I'm not so much asking "how do I fix the problem" as "how do i diagnose it" ? I have ISR values and DPC values which are acceptably low and stable thanks to a large suite of optimizations (the usual suspects). But I am plagued by an infrequent latency spike which interrupts my ASIO buffers. This seems to correlate to a periodically high LatencyMon "interrupt to user process latency".
I have taken many traces with WPR and looked hard through WPA for a correlation. I've read this page a few times and tried to grok it's real-world implication Resplendence Software - LatencyMon Interrupt to process latencies
I've googled A LOT - but the problem is due to the many thousands of posts of people's LatencyMon reports, they are all thrown up in the search results.
Where should I look for causes to diagnose "interrupt to process latency reflects the interval in which a usermode application responds to a hardware request" ?
Can anyone help me help myself?
Many thanks in advance.
soundie
This is my first post. I have enough knowledge to be 'dangerous'. Maybe a little more. As an audio engineer, I have optimized several Lenovo T series laptops for real-time recording over the years (up to 128 tracks over Madi). However, my latest, a HP Zbook G5 and the first on Win 10 has me completely stumped.
I'm not so much asking "how do I fix the problem" as "how do i diagnose it" ? I have ISR values and DPC values which are acceptably low and stable thanks to a large suite of optimizations (the usual suspects). But I am plagued by an infrequent latency spike which interrupts my ASIO buffers. This seems to correlate to a periodically high LatencyMon "interrupt to user process latency".
I have taken many traces with WPR and looked hard through WPA for a correlation. I've read this page a few times and tried to grok it's real-world implication Resplendence Software - LatencyMon Interrupt to process latencies
I've googled A LOT - but the problem is due to the many thousands of posts of people's LatencyMon reports, they are all thrown up in the search results.
Where should I look for causes to diagnose "interrupt to process latency reflects the interval in which a usermode application responds to a hardware request" ?
Can anyone help me help myself?
Many thanks in advance.
soundie