Re: [PATCH] blk-mq: only run mapped hw queues in blk_mq_run_hw_queues()

[Christian Borntraeger <borntraeger@de.ibm.com>]

[-- Attachment #1: Type: text/plain, Size: 384 bytes --]



On 04/05/2018 06:11 PM, Ming Lei wrote:
>>
>> Could you please apply the following patch and provide the dmesg boot log?
> 
> And please post out the 'lscpu' log together from the test machine too.

attached.

As I said before this seems to go way with CONFIG_NR_CPUS=64 or smaller.
We have 282 nr_cpu_ids here (max 141CPUs on that z13 with SMT2) but only 8 Cores
== 16 threads.




[-- Attachment #2: dmesg.gz --]
[-- Type: application/gzip, Size: 22264 bytes --]

[-- Attachment #3: lscpu --]
[-- Type: text/plain, Size: 808 bytes --]

Architecture:        s390x
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Big Endian
CPU(s):              16
On-line CPU(s) list: 0-15
Thread(s) per core:  2
Core(s) per socket:  8
Socket(s) per book:  3
Book(s) per drawer:  2
Drawer(s):           4
NUMA node(s):        1
Vendor ID:           IBM/S390
Machine type:        2964
CPU dynamic MHz:     5000
CPU static MHz:      5000
BogoMIPS:            20325.00
Hypervisor:          PR/SM
Hypervisor vendor:   IBM
Virtualization type: full
Dispatching mode:    horizontal
L1d cache:           128K
L1i cache:           96K
L2d cache:           2048K
L2i cache:           2048K
L3 cache:            65536K
L4 cache:            491520K
NUMA node0 CPU(s):   0-15
Flags:               esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs te vx sie

[-- Attachment #4: lscpu2 --]
[-- Type: text/plain, Size: 1406 bytes --]

CPU NODE DRAWER BOOK SOCKET CORE L1d:L1i:L2d:L2i ONLINE CONFIGURED POLARIZATION ADDRESS
0   0    0      0    0      0    0:0:0:0         yes    yes        horizontal   0
1   0    0      0    0      0    1:1:1:1         yes    yes        horizontal   1
2   0    0      0    0      1    2:2:2:2         yes    yes        horizontal   2
3   0    0      0    0      1    3:3:3:3         yes    yes        horizontal   3
4   0    0      0    0      2    4:4:4:4         yes    yes        horizontal   4
5   0    0      0    0      2    5:5:5:5         yes    yes        horizontal   5
6   0    0      0    0      3    6:6:6:6         yes    yes        horizontal   6
7   0    0      0    0      3    7:7:7:7         yes    yes        horizontal   7
8   0    0      0    1      4    8:8:8:8         yes    yes        horizontal   8
9   0    0      0    1      4    9:9:9:9         yes    yes        horizontal   9
10  0    0      0    1      5    10:10:10:10     yes    yes        horizontal   10
11  0    0      0    1      5    11:11:11:11     yes    yes        horizontal   11
12  0    0      0    1      6    12:12:12:12     yes    yes        horizontal   12
13  0    0      0    1      6    13:13:13:13     yes    yes        horizontal   13
14  0    0      0    1      7    14:14:14:14     yes    yes        horizontal   14
15  0    0      0    1      7    15:15:15:15     yes    yes        horizontal   15