Dell S4148F-ON Open Networking Hardware Diagnostic Guide June 2018 - Page 49

Test output, Write output, Constraints, Data flow, nputool

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Test output root@dell-diag-os:~# memtool --test Testing Memory Regions: Testing Memory Region 0: Address Read Test Passed Address Write Test Passed Address Walking 1's Test Passed Address Walking 0's Test Passed Data Read Test Passed Data Write Test Passed Data Walking 1's Test Passed Data Walking 0's Test Passed Data Sliding 1's Test Passed Data Sliding 0's Test Passed Data Pattern Test Passed Memory: Overall test results Passed root@dell-diag-os:~# Read output root@dell-diag-os:~# memtool --read --addr=200 [00000200]: 0x00 || . Write output root@dell-diag-os:~# memtool --write --addr=200 --val=0x50 Constraints You cannot perform memory tests while other tests that allocate and use memory within the region are performing. However, you can perform the Read tests concurrently with other processes. You cannot run multiple memory tests at the same time as they may collide within the memory spaces. Memory tests cannot test all the memory, and without cache flushes, memory tests may not get out of the caches. The SDI must ensure the memory accessed is accessing the physical memory. This check slows down the tests. Data flow The memtool is not part of the data path and does not participate in the data flow. nputool The nputool allows for configuring and testing the switch ASICs. The nputool tests the NPU in the system. The nputool verifies that ports are up and traffic between the ports is working either using the CPU-generated packet or using IXIA connected to port-1 and port-2 based on the configuration. Dell EMC DAIG-OS tools 49

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Test output
root@dell-diag-os:~# memtool --test
Testing Memory Regions:
Testing Memory Region 0:
Address Read Test
.........................................
Passed
Address Write Test
........................................
Passed
Address Walking 1's Test
..................................
Passed
Address Walking 0's Test
..................................
Passed
Data Read Test
............................................
Passed
Data Write Test
...........................................
Passed
Data Walking 1's Test
.....................................
Passed
Data Walking 0's Test
.....................................
Passed
Data Sliding 1's Test
.....................................
Passed
Data Sliding 0's Test
.....................................
Passed
Data Pattern Test
.........................................
Passed
Memory: Overall test results -------------------------- >>> Passed
root@dell-diag-os:~#
Read output
root@dell-diag-os:~# memtool --read --addr=200
[00000200]: 0x00
|| .
Write output
root@dell-diag-os:~# memtool --write --addr=200 --val=0x50
Constraints
You cannot perform memory tests while other tests that allocate and use memory within the region are performing. However, you can
perform the Read tests concurrently with other processes. You cannot run multiple memory tests at the same time as they may collide
within the memory spaces.
Memory tests cannot test all the memory, and without cache
flushes,
memory tests may not get out of the caches. The SDI must ensure
the memory accessed is accessing the physical memory. This check slows down the tests.
Data
flow
The
memtool
is not part of the data path and does not participate in the data
flow.
nputool
The
nputool
allows for
configuring
and testing the switch ASICs.
The
nputool
tests the NPU in the system. The
nputool
verifies
that ports are up and
traffic
between the ports is working either using
the CPU-generated packet or using IXIA connected to port-1 and port-2 based on the
configuration.
Dell EMC DAIG-OS tools
49