LatencyMon 是一款專業的音頻檢測軟體,可檢測出電腦上各個驅動的狀態,特別是聲卡驅動的延遲情況,LatencyMon 檢測出電腦音頻延遲、點擊和持久性噪點的原因,了解聲卡驅動是否適配電腦。LatencyMon 還提供了ISR監視器、DPC監視器和pagefault顯示器的功能,播放音樂和玩遊戲的時候,如聲音播放出現問題的話,LatencyMon可檢測問題原因出自何處,雖不能提供解決方案,卻可以掃描出所有的音頻問題。
The audio latency problem
Windows is not a real-time operating system. All requests to the operating system are delivered on a best effort basis. There are no guarantees whatsoever that requests are delivered within a certain time frame, which are the characteristics of a real-time operating system. That is not a problem for most devices and tasks but this is bad news for audio applications (which are considered soft real-time) because they need to deliver data to the subsystem and the hardware in buffers several times per second. If one or more buffers miss their deadlines and are not delivered in time it has audible consequences which are recognized as dropouts, clicks and pops.
About DPCs and ISRs
The Windows thread dispatcher (also known as scheduler) which is part of the kernel executes threads based on a priority scheme. Threads with higher priority will be given a longer execution time (also known as quantum or time slice) than threads with a lower priority. However the kernel also knows other types of units of execution known as interrupt service routines (ISRs). Devices connected to the system may interrupt on a connected CPU and cause their interrupt service routines to execute. An interrupt can occur on the same processor that an audio program is running on. Any thread that was running on the processor on which an interrupt occurred will be temporarily halted regardless of its priority. The interrupt service routine (ISR) is executed and may schedule a DPC (Deferred Procedure Call) to offload an amount of work. The DPC will most likely run immediately on the same processor which means the audio application will halt until both the ISR and the DPC routines have finished execution. That is because ISRs and DPCs run at elevated IRQL which means they cannot become preempted by the thread dispatcher (scheduler). Therefore to guarantee responsiveness of the system, ISR and DPC routines should execute as fast as possible. Guidelines say that they should not spend more than 100 µs of execution time however this is often not reached due to hardware factors beyond the control of the driver developer. If execution time gets too high, the audio program may be unable to deliver audio buffers to the hardware in a timely manner.
About hard pagefaults
Windows uses a concept of virtual memory which relies on the page translation system provided by the CPU. Whenever a memory address is requested which is not available in physical memory (not resident), an INT 14 will occur. The OS provided INT 14 handler will decide how to proceed next. If the page in which the address...
M3 Bitlocker Loader Mac 版是一款Mac平臺的加密磁碟讀取工具,是一款能夠對使用了 Bitlocker 方式加密的磁片進行讀取管理權限的工具,對於這類 USB 設備或者是磁片,它能流覽、加密、解密等,操作簡單。使用原始密碼或 BitLocker恢復金鑰與M3載入器打開BitLocker加密BitLocker驅動器後,您可以複製任何檔從你的MAC電腦BitLocker加密卷。
Network Recycle Bin Tool 是一款 回收站數據恢復軟體,專門用於幫助您恢復已刪除的文件,該程式的目的是將已刪除的項目從網絡驅動器移到回收站,因此您可以輕鬆地還原文件或目錄。其具備了簡單直觀的操作界面,您可以在配置界面下設置存儲已刪除文件的路徑、自動刪除舊文件、跟踪刪除指定驅動器的文件等基本參數,然後即可快速進行恢復操作,Network Recycle Bin Tool可以恢復您或其他用戶從共享網絡服務器刪除的文件或其他項目,並且使用簡單。
Network Recycle Bin Tool 與備份軟體不同,您可以還原已刪除的檔,就像刪除時一樣。您可以定義網路驅動器或網路資料夾的清單來追蹤已刪除的檔案。您還可以指定最大檔案大小,以限制追蹤的檔案數。此外,它為您提供了取消刪除工具,它防止刪除網路檔為指定的資料夾根據文件掩碼。匯出和匯入功能可説明您在網路電腦上安裝具有相同選項的軟體。
完全透視系統安全
Netwrix Auditor是一套IT監管軟體,您可得到詳細的監管資料,包括誰在何時、何處、作出了何種變更,以及所有用戶的存取權限。
影片介紹
配合各大平台與資料庫設計
可監管您的雲端與離線資料,掌握IT基礎設施的變化、以及資料存取情形。
更新介紹
New Features
Improved risk assessment, searching and alerting capabilities for sensitive data — Through integration with Netwrix Data Classification, Netwrix Auditor offers additional enhancements to data security. You can now identify sensitive data shared with everyone and through direct access in Risk Assessment, as well as search for activities around sensitive data on Dell Unity and receive alerts on such activities.
Add-on Store inside Netwrix Auditor — The Add-on Store is your one-stop shop for integrating Netwrix Auditor with your IT ecosystem. Now, you do not need to leave Auditor to get free, pre-built add-ons for SIEM systems, ITSM tools, cloud services, and more.
Reporting on Azure AD group membership — Two new reports empower you to easily review the membership of privileged groups in Azure AD, either on demand or via subscription. One report lists all your Azure AD groups with their type, description and members; the other lists all the groups that a given user account is a member of.
Major Enhancements
Cisco Meraki devices can now be monitored in the environments where MFA is required thanks to the new API connection mode.
The Access Reviews module now supports DFS and non-Windows file shares: Dell Unity, NetApp, Nutanix Files, Qumulo, and Synology.
To speed investigations, details about the actions that triggered an alert are available right from the Alert dashboard.
The rearrangeable tiles on the Home Screen are now resizable as well.
You get detailed recommendations on how to use Netwrix Auditor based on your configuration and action history.
You can filter the “Overexposed data in Teams” report based on data sensitivity.
You see the names of accounts that were added to or removed from Exchange Online distribution lists.
Identification of MFA requirement for Azure AD logons is now more accurate.
Netwrix Auditor now supports Oracle 21c, Pulse Secure 9.1R3, Cisco OS FTD 6.5, Qumulo Core 4 and 5, Dell Unity 5.2, NetApp up to 9.12, Dell Isilon up to 9.4, VMware vCenter up to 8.0.
Numerous additional enhancements have been made to improve administration, performance and security.