Stefan Scherer StefanScherer
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alexsarmiento
/ btsync.conf
Last active
December 27, 2015 18:15
— forked from mendelgusmao/btsync
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| { | |
| "device_name": "My Book Live NAS", | |
| "listening_port" : 0, // 0 - randomize port | |
| "storage_path" : "/DataVolume/cache/btsync/syncStorage", | |
| "pid_file" : "/var/run/btsync.pid", | |
| "check_for_updates" : true, | |
| "use_upnp" : true, // use UPnP for port mapping |
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| Remove-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" -Name "SysprepAndSeal" -ErrorAction SilentlyContinue | |
| $ObjUser = [ADSI]"WinNT://localhost/vagrant"; | |
| $ObjUser.userflags = 2; | |
| $ObjUser.setinfo(); | |
| C:\Windows\System32\sysprep\sysprep.exe /generalize /oobe /quiet /shutdown |
jboner
/ latency.txt
Last active
December 30, 2025 18:49
Latency Numbers Every Programmer Should Know
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| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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| $ComputerName = "New Name" | |
| Remove-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "Hostname" | |
| Remove-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "NV Hostname" | |
| Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Control\Computername\Computername" -name "Computername" -value $ComputerName | |
| Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Control\Computername\ActiveComputername" -name "Computername" -value $ComputerName | |
| Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "Hostname" -value $ComputerName | |
| Set-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" -name "NV Hostname" -value $ComputerName | |
| Set-ItemProperty -path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" -name "AltDefaultDomainName" -value $ComputerName |
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