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fio some benchmarks iops

130 nvme read: iops=37457 write: iops=12491 -bash-4.4# fio –randrepeat=1 –gtod_reduce=1 –name=test –filename=test –bs=4k –iodepth=64 –size=4G –readwrite=randrw –rwmixread=75 test: (g=0): rw=randrw, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=64 fio-2.0.14 Starting 1 process Jobs: 1 (f=1): [m] [100.0% done] [197.2M/67756K/0K /s] [50.7K/16.1K/0 iops] [eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=39865: Tue Oct 30 16:47:38 2018 read : io=3071.7MB, bw=149830KB/s, iops=37457Seguir leyendo

Postfix Monitoring With Mailgraph And pflogsumm     To install pflogsumm, we run aptitude install pflogsumm We want pflogsumm to be run by a cron job each day and send the report to Therefore we must configure our system that it writes one mail log file for 24 hours, and afterwards starts the next mail log so that weSeguir leyendo

iozone benchmark 4k and fio iozone -r 4k -s 4096m -b test4k.xls fio –randrepeat=1 –gtod_reduce=1 –name=test –filename=test –bs=4k –iodepth=64 –size=4G –readwrite=randrw –rwmixread=75 versión windows

Linux Tape Backup With mt And tar Command Howto

source:   Magnetic tape is a non-volatile storage medium consisting of a magnetic coating on a thin plastic strip. Nearly all recording tape is of this type, whether used for video, audio storage or general purpose digital data storage using a computer. How do I make backup using tapes under Linux operating systems? LinuxSeguir leyendo

screenFetch – The Bash Screenshot Information Tool   screenFetch is a “Bash Screenshot Information Tool”. This handy Bash script can be used to generate one of those nifty terminal theme information + ASCII distribution logos you see in everyone’s screenshots nowadays. It will auto-detect your distribution and display an ASCII version of that distribution’s logo and some valuable information to theSeguir leyendo

provide a systemd user service unit for vncserver   Ejemplo: loginctl enable-linger username systemctl –user enable vncserver@:1.service # # /usr/lib/systemd/user/vncserver@.service # # 1. Switches for vncserver should be entered in ~/.vnc/config rather than # hard-coded into this unit file. See the vncserver(1) manpage. # # 2. Users wishing for the server to continue running after the owner logs # out MUST enableSeguir leyendo

Realtek rtl8723de Device d723

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device d723 Subsystem: Hewlett-Packard Company Device 8319 Flags: bus master, fast devsel, latency 0, IRQ 122 I/O ports at 1000 [size=256] Memory at 91000000 (64-bit, non-prefetchable) [size=64K] Capabilities: Kernel driver in use: rtl8723de Kernel modules: rtl8723de     1. Make sure you have git installed. You canSeguir leyendo