Comments (1)
Hi,
Thanks for experimenting with FEMU!
The reason behind the latency difference you observed is most probably due to difference in the emulated NAND latencies in blackbox
and whitebox
modes. By default, blackbox
mode emulate relatively small NAND read/program/erase latencies (see hw/block/femu/bbftl/ftl.h
), and whitebox
mode defaults to an MLC NAND with higher latencies.
Setting the NAND parameters to be similar to each other in both modes makes more sense for the comparison.
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Related Issues (20)
- ZNS emulation from https://zonedstorage.io vs FEMU ZNS HOT 1
- FEMU does not receive actions generated by nvme-cli. HOT 2
- SSD cache management and STL module HOT 2
- The guest would be broken down when I intentionally made some mistakes with the ZNS SSD simulated by FEMU. HOT 2
- where is the log in FEMU? HOT 2
- Could FEMU process requests in parallel? HOT 1
- function address_space_rw mistakes the parameter HOT 1
- ftl_thread number HOT 2
- a bug in the function declaration "nvme_discontig" in "nvme.h" HOT 1
- Black-ssd HOT 1
- Dose FEMU require certain configuration of Linux kernel when emulating zns? HOT 2
- TLC+SLC HOT 1
- How can i add a OS-SSD NVME command? HOT 3
- The emulated devices disappeared in /dev HOT 1
- what is the simplest way to insert modified zns module in guest os? HOT 1
- Problem when write to the drive under whitebox mode. HOT 2
- blackbox ssd performace HOT 2
- Only one or two COREs are used on WSL HOT 2
- Page types per flash types in OCSSD 2.0 HOT 1
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