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84%
Warewulf 4 – Time and Resource Management
17.01.2023
Home »  HPC  »  Articles  » 
                   x86_64 2.9.1-9.el8                           baseos          393 k  groff-base                 x86_64 1.22.3-18.el8                         baseos          1.0 M  hwloc-ohpc                 x86_64 2.7.0
84%
Thrashing the data cache for fun and profit
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Lucy Baldwin, 123RF.com
: $ time ./row real 0m1.388s user 0m0.943s sys 0m0.444s ** $ time ./column real 0m4.538s user 0m4.068s sys 0m0.468s The experiment shows the column-major code taking three and a half
84%
When I/O workloads don't perform
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Viacheslav Iakobchuk, 123RF.com
Output 8,80 1 4398 0.027331017 218 M W 1342768 + 8 [kworker/u16:3] 8,80 1 4399 0.027332069 218 A W 1342776 + 8 <- (8,81) 1326392 8,80 1 4400 0
84%
Zero-Ops Kubernetes with MicroK8s
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
-kube-controllers-[snip]-pnnkc 0/1 Pending 0 66m kube-system calico-node-m79sg 0/1 Pending 0 66m To make the MicroK8s build friendlier to Raspberry Pi, I followed some cgroups ... A zero-ops installation of Kubernetes with MicroK8s operates on almost no compute capacity and roughly 700MB of RAM. ... MicroK8s ... Zero-Ops Kubernetes with MicroK8s
83%
When I/O Workloads Don’t Perform
12.05.2021
Home »  HPC  »  Articles  » 
’s starting point (e.g., 1326392) Listing 10: blktrace Output   8,80   1     4398     0.027331017   218  M   W 1342768 + 8 [kworker/u16:3]   8,80   1     4399     0.027332069   218  A   W 1342776 + 8 <- (8
82%
Podman for Non-Root Docker
05.08.2024
Home »  HPC  »  Articles  » 
/ubuntu noble/restricted amd64 Packages [117 kB] Get:7 http://archive.ubuntu.com/ubuntu noble/multiverse amd64 Packages [331 kB] Get:8 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Packages [256 kB] Get:9 http://security.ubuntu.com
81%
Stretching devices with limited resources
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © Lucy Baldwin, 123RF.com
ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram1 lzo-rle 495.8M 4K 73B 12K 2 [SWAP] # Now let's make a ramdrive for /var/logs $ zramctl --find --size=512M /dev/zram0 # lay
81%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
=libaio, iodepth=32 fio-3.12 Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][w=1420KiB/s][w=355 IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=3377: Sat Jan  9 15:31:04 2021   write: IOPS=352, BW=1410Ki
80%
S.M.A.R.T., smartmontools, and drive monitoring
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © _fla, 123RF.com
). Smartmontools is compatible with all S.M.A.R.T. features and supports ATA/ATAPI/SATA-3 to -8 disks and SCSI disks and tape devices. It also supports the major Linux RAID cards, which can sometimes cause ... Modern drives use S.M.A.R.T. (self-monitoring, analysis, and reporting technology) to gather information and run self-tests. Smartmontools is a Linux tool for interacting with the S.M.A.R.T. features ... S.M.A.R.T., smartmontools, and drive monitoring
80%
Bringing old hardware back into the game
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Lucy Baldwin, 123RF.com
://en.wikipedia.org/wiki/ATX ThinkPad T420: https://support.lenovo.com/us/en/solutions/pd015734/ 16GB (2X8GB) RAM kit (204PIN SODIMM DDR3 SDRAM PC10600): https://www.amazon.com/gp/product/B00B2OT9HI/ 250GB Samsung 850 EVO v

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