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Altera_Forum
Honored Contributor
15 years agoSlow PCIe cycles
I'm seeing very slow PCIe cycles from a PPC master to Altera FPGA Avalon MM slave peripherals. Typical times are 4us for a read and 7us for a write - which seem extremely pedestrian to me! Does...
Altera_Forum
Honored Contributor
12 years agoHello,
I experiment the same kind of slow reads (big >2.0us latency) (no latency for writes). Did you finally explain your issue and found a way of reducing this latency. I am not expert on PCIe but see in the documentations some QoS capabilities? Thanks Yann