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30%
Improving performance with environment variables
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © sgame, fotolia.com
,048 0.776039 22.137891 1.612694 10.652902 0.199173 86.256026 0.455025 37.755903 4,096 5.855209 23.472936 12.275261 11
30%
NVDIMM and the Linux kernel
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © Denis Dryashkin, 123RF.com
log. The storage is clearly divided: The kernel has tagged 0x0000000100000000 to 0x00000004ffffffff (4-20GiB) as persistent (type 12) . The /dev/pmem0 device shows up after loading the driver. Now
30%
NVDIMM Persistent Memory
22.09.2016
Home »  HPC  »  Articles  » 
log. The storage is clearly divided: The kernel has tagged 0x0000000100000000 to 0x00000004ffffffff (4-20GiB) as persistent (type 12) . The /dev/pmem0 device shows up after loading the driver. Now
30%
Monitoring Storage with iostat
25.02.2013
Home »  HPC  »  Articles  » 
.00 0.00 01/31/2013 09:56:03 AM avg-cpu: %user %nice %system %iowait %steal %idle 6.00 0.00 2.00 0.50 0.00 91.50 Device: rrqm/s wrqm/s r/s w/s rMB
29%
Creating Virtual SSDs
21.01.2020
Home »  HPC  »  Articles  » 
    8        2  488383488 sda2 12    8       16 6836191232 sdb 13    8       64 6836191232 sde 14    8       80   39078144 sdf 15    8       48 6836191232 sdd 16    8       32 6836191232 sdc 17   11        0    1048575 sr0
29%
Building a virtual NVMe drive
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © lassedesignen, 123RF
0 1048575 sr0 With the parted utility, you can create a single partition on each entire HDD: $ for i in sdb sdc sdd sde; do sudo parted --script /dev/$i mklabel gpt mkpart primary 1MB 100
29%
Linux device mapper writecache
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © lightwise, 123R.com
] test: (groupid=0, jobs=1): err= 0: pid=1225: Sat Oct 12 19:20:18 2019 write: IOPS=168k, BW=655MiB/s (687MB/s)(10.0GiB/15634msec); 0 zone resets [ ... ] Run status group 0 (all jobs): WRITE: bw=655Mi
29%
Performance Health Check
13.06.2022
Home »  HPC  »  Articles  » 
.69 17.26 67.7 IS (4 cores) 0.6 2.16 8.2 LU (6 cores) 5.13 41.8   MG (4 cores) 1.2 3.8 39.1 SP (4 cores
29%
Measuring the performance health of system nodes
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Lead Image © Peter Hermes Furian, 123RF.com
.05 FT (4 cores) 1.69 17.26 67.7 IS (4 cores) 0.6 2.16 8.2 LU (6 cores) 5.13 41.8 MG (4 cores) 1.2 3.8 39
29%
Linux Writecache
19.11.2019
Home »  HPC  »  Articles  » 
Jobs: 1 (f=1): [w(1)][100.0%][w=654MiB/s][w=167k IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=1225: Sat Oct 12 19:20:18 2019   write: IOPS=168k, BW=655MiB/s (687MB/s)(10.0GiB/15634msec); 0

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