Recent content by eyalgutman67

The "HW Drive" is encrypted HW IP that i bought. It may happen in the source but the vendor that supply the driver said he don't have this number on his code ... i got new SSD from WD BLACK SN850X that also have big cache. I will check and update the forum. Thank you and i will keep all updated.

The idea was that till 400MByte and since we have sustained data rate of the 4GByte/sec we will not hit any wall ..

This is HW apllication that get sampels from the "antena" and try to record them. So no PC is on the loop. the "driver" is also coded by HW and it come from some IP vendor. The idea is that we can not push back for long time the stream that come so any push back that come from the nvme that is...

Exactly !!! so what can happen on 3GByte write boundary. I will share the measurements now

We are doing long write and after a while (lets assume 30 minutes) we are doing the read.. so we dont mix. Also this issue is only on the write (read work perfectly), We did slow down by half the write and it still "stall" for some period on the 3GByte write boundary. we try to keep the system...

This is not a file, its one large stream of data that is inject (write) directly to the NVME. so you can look on that as one big file. There is no PC involve her since its "hardware system"

Hi , this is an internal system that get external stream of samples and using NVME IP that is design over PCI Exp (and all off that is on FPGA (agelix7) that is connect directly to the Samsung NVME. Since we are monitoring the low level interface we can see exactly when the NVME is doing the...

Hi all i am trying to build a recorder system base on FPGA board that connect via PCI Express Gen4 x 4 . I need to do around 400Gbyte write on around 4GByte/sec. I selceted the Samasung 990 Pro since it have cache of 420Gbyte. Its almost work perfect but each 3GByte we have large stall that can...