Salut,
Je rencontre depuis plusieurs semaines un problème récurrent lors de l'exploration de fichiers sur le réseau. Je constate une forte lenteur lorsque je parcours une arborescence de fichiers réseau via l'explorateur de fichiers classique de Windows XP (10-15s pour afficher l'arborescence de chaque répertoire). L'ordinateur ne présente pas le même symptôme lors de l'exploration de fichiers en local.
J'ai utilisé l'utilitaire Regmon de feu SysInternals car je constatais que le process explorer.exe dédié à l'explorateur de fichiers consommait un peu de CPU lors de ces phases de ramage (de longue date j'ai configuré XP pour avoir 2 process explorer.exe : un pour le shell, l'autre pour l'explorateur de fichiers). Résultat :
> Lorsque je fais une exploration locale, explorer.exe fait de l'ordre d'une centaine de requêtes sur la base des registres
> Par contre, en exploration réseau, explorer.exe peut faire plus de 70 000 requêtes sur la base des registres, pour un pauvre répertoire contenant quelques dizaines de fichiers
En analysant ces requêtes, on retrouve une séquence commune qui a tendance à se répéter à l'infini. Je la reporte ci-dessous.
Je suis sous XP Pro SP2 avec ESET en anti-virus et FW (même désactivé, le problème perdure). Il ne me semble pas avoir installé récemment de nouveaux patchs ou softs pouvant interférer avec le process explorer.exe. Les fichiers en réseau sur trouve sur un domaine AD sous 2003. Le portable qui présente le problème est en workgroup présentant le même nom que le domaine (pas de pb d'accès). Durant plusieurs mois, je n'ai pas eu de problème d'exploration et il n'y a pas eu de changement sur le serveur. Donc je ne pense pas que la méthode d'accès pose problème. Il n'y a aucun message problème particulier dans l'explorateur d'évènements touchant au process explorer.
Comme je sèche un peu, merci d'avance à toute personne qui pourrait m'aider.
Code :
- 37.97783992 explorer.exe:968 QueryKey HKCU SUCCESS Name: \REGISTRY\USER\S-1-5-21-1822931009-3010424120-1276223567-1005_CLASSES
- 37.97785752 explorer.exe:968 OpenKey HKCU\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D} NOTFOUND
- 37.97787708 explorer.exe:968 OpenKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D} SUCCESS Access: 0x20019
- 37.97789160 explorer.exe:968 QueryKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D} SUCCESS Name: \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}
- 37.97793351 explorer.exe:968 OpenKey HKCU\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ProgID NOTFOUND
- 37.97794301 explorer.exe:968 OpenKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ProgID NOTFOUND
- 37.97795502 explorer.exe:968 CloseKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D} SUCCESS
- 37.97799581 explorer.exe:968 OpenKey HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellCompatibility\Objects\{20D04FE0-3AEA-1069-A2D8-08002B30309D} NOTFOUND
- 37.97801424 explorer.exe:968 QueryKey HKCU SUCCESS Name: \REGISTRY\USER\S-1-5-21-1822931009-3010424120-1276223567-1005_CLASSES
- 37.97802877 explorer.exe:968 OpenKey HKCU\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32 NOTFOUND
- 37.97804637 explorer.exe:968 OpenKey HKCR\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32 SUCCESS Access: 0x1
- 37.97806174 explorer.exe:968 QueryKey HKCR\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32 SUCCESS Name: \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32
- 37.97808241 explorer.exe:968 OpenKey HKCU\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32 NOTFOUND
- 37.97809414 explorer.exe:968 QueryValue HKCR\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32\(Default) SUCCESS "%SystemRoot%\system32\SHELL32.dll"
- 37.97816398 explorer.exe:968 CloseKey HKCR\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32 SUCCESS
- 37.97819751 explorer.exe:968 QueryKey HKCU SUCCESS Name: \REGISTRY\USER\S-1-5-21-1822931009-3010424120-1276223567-1005_CLASSES
- 37.97821120 explorer.exe:968 OpenKey HKCU\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder NOTFOUND
- 37.97823019 explorer.exe:968 OpenKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder SUCCESS Access: 0x2000000
- 37.97824472 explorer.exe:968 QueryKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder SUCCESS Name: \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder
- 37.97826456 explorer.exe:968 OpenKey HKCU\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder NOTFOUND
- 37.97827573 explorer.exe:968 QueryValue HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder\Attributes SUCCESS 0x60410137
- 37.97828970 explorer.exe:968 QueryKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder SUCCESS Name: \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder
- 37.97830981 explorer.exe:968 OpenKey HKCU\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder NOTFOUND
- 37.97832127 explorer.exe:968 QueryValue HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder\CallForAttributes SUCCESS 0xF0000000
- 37.97833551 explorer.exe:968 CloseKey HKCR\CLSID\{0AFACED1-E828-11D1-9187-B532F1E9575D}\ShellFolder SUCCESS
- 37.97835591 explorer.exe:968 OpenKey HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum NOTFOUND
- 37.97837491 explorer.exe:968 OpenKey HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum SUCCESS Access: 0x1
- 37.97838748 explorer.exe:968 QueryValue HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum\{0AFACED1-E828-11D1-9187-B532F1E9575D} NOTFOUND
- 37.97839921 explorer.exe:968 CloseKey HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum SUCCESS
- 37.97842072 explorer.exe:968 OpenKey HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellCompatibility\Objects\{0AFACED1-E828-11D1-9187-B532F1E9575D} NOTFOUND
- 37.97843832 explorer.exe:968 OpenKey HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellCompatibility\Objects\{0AFACED1-E828-11D1-9187-B532F1E9575D} NOTFOUND
- 37.97854197 explorer.exe:968 OpenKey HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellCompatibility\Objects\{208D2C60-3AEA-1069-A2D7-08002B30309D} NOTFOUND
- 37.97855929 explorer.exe:968 QueryKey HKCU SUCCESS Name: \REGISTRY\USER\S-1-5-21-1822931009-3010424120-1276223567-1005_CLASSES
- 37.97857325 explorer.exe:968 OpenKey HKCU\CLSID\{208D2C60-3AEA-1069-A2D7-08002B30309D}\InProcServer32 NOTFOUND
- 37.97859085 explorer.exe:968 OpenKey HKCR\CLSID\{208D2C60-3AEA-1069-A2D7-08002B30309D}\InProcServer32 SUCCESS Access: 0x1
- 37.97860510 explorer.exe:968 QueryKey HKCR\CLSID\{208D2C60-3AEA-1069-A2D7-08002B30309D}\InProcServer32 SUCCESS Name: \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{208D2C60-3AEA-1069-A2D7-08002B30309D}\InProcServer32
- 37.97862522 explorer.exe:968 OpenKey HKCU\CLSID\{208D2C60-3AEA-1069-A2D7-08002B30309D}\InProcServer32 NOTFOUND
- 37.97863667 explorer.exe:968 QueryValue HKCR\CLSID\{208D2C60-3AEA-1069-A2D7-08002B30309D}\InProcServer32\(Default) SUCCESS "%SystemRoot%\system32\SHELL32.dll"
- 37.97869506 explorer.exe:968 CloseKey HKCR\CLSID\{208D2C60-3AEA-1069-A2D7-08002B30309D}\InProcServer32 SUCCESS
- 37.97879116 explorer.exe:968 OpenKey HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace SUCCESS Access: 0x20019
- 37.97880373 explorer.exe:968 EnumerateKey HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace SUCCESS Name: {2227A280-3AEA-1069-A2DE-08002B30309D}
- 37.97882105 explorer.exe:968 OpenKey HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace\{2227A280-3AEA-1069-A2DE-08002B30309D} SUCCESS Access: 0x20019
- 37.97883390 explorer.exe:968 QueryValue HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace\{2227A280-3AEA-1069-A2DE-08002B30309D}\SuppressionPolicy NOTFOUND
- 37.97884927 explorer.exe:968 CloseKey HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace\{2227A280-3AEA-1069-A2DE-08002B30309D} SUCCESS
- 37.97885904 explorer.exe:968 EnumerateKey HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace NOMORE
- 37.97887022 explorer.exe:968 CloseKey HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace SUCCESS
- 37.97888838 explorer.exe:968 OpenKey HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\RemoteComputer\NameSpace NOTFOUND
- 37.97890710 explorer.exe:968 OpenKey HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer SUCCESS Access: 0x2000000
- 37.97892302 explorer.exe:968 CreateKey HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\SessionInfo\00000000000129c7 SUCCESS Access: 0x1
- 37.97893531 explorer.exe:968 CloseKey HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer SUCCESS
- 37.97894844 explorer.exe:968 OpenKey HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\SessionInfo\00000000000129c7\RemoteComputer\NameSpace NOTFOUND
- 37.97895962 explorer.exe:968 CloseKey HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\SessionInfo\00000000000129c7 SUCCESS
- 37.97897498 explorer.exe:968 QueryKey HKCU SUCCESS Name: \REGISTRY\USER\S-1-5-21-1822931009-3010424120-1276223567-1005_CLASSES
- 37.97899035 explorer.exe:968 OpenKey HKCU\CLSID\{2227A280-3AEA-1069-A2DE-08002B30309D}\ShellFolder NOTFOUND
- 37.97900823 explorer.exe:968 OpenKey HKCR\CLSID\{2227A280-3AEA-1069-A2DE-08002B30309D}\ShellFolder SUCCESS Access: 0x2000000
- 37.97902275 explorer.exe:968 QueryKey HKCR\CLSID\{2227A280-3AEA-1069-A2DE-08002B30309D}\ShellFolder SUCCESS Name: \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2227A280-3AEA-1069-A2DE-08002B30309D}\ShellFolder
- 37.97904287 explorer.exe:968 OpenKey HKCU\CLSID\{2227A280-3AEA-1069-A2DE-08002B30309D}\ShellFolder NOTFOUND
- 37.97905292 explorer.exe:968 QueryValue HKCR\CLSID\{2227A280-3AEA-1069-A2DE-08002B30309D}\ShellFolder\WantsParseDisplayName NOTFOUND
- 37.97906410 explorer.exe:968 CloseKey HKCR\CLSID\{2227A280-3AEA-1069-A2DE-08002B30309D}\ShellFolder SUCCESS
- 37.97912165 explorer.exe:968 OpenKey HKLM\System\CurrentControlSet\Control\ComputerName SUCCESS Access: 0x20019
- 37.97913673 explorer.exe:968 OpenKey HKLM\System\CurrentControlSet\Control\ComputerName\ActiveComputerName SUCCESS Access: 0x20019
- 37.97914791 explorer.exe:968 QueryValue HKLM\System\CurrentControlSet\Control\ComputerName\ActiveComputerName\ComputerName SUCCESS "IBM01"
- 37.97915936 explorer.exe:968 CloseKey HKLM\System\CurrentControlSet\Control\ComputerName\ActiveComputerName SUCCESS
- 37.97916970 explorer.exe:968 CloseKey HKLM\System\CurrentControlSet\Control\ComputerName SUCCESS
- 37.99567543 explorer.exe:968 OpenKey HKLM\System\CurrentControlSet\Control\ComputerName SUCCESS Access: 0x20019
- 37.99569135 explorer.exe:968 OpenKey HKLM\System\CurrentControlSet\Control\ComputerName\ActiveComputerName SUCCESS Access: 0x20019
- 37.99570281 explorer.exe:968 QueryValue HKLM\System\CurrentControlSet\Control\ComputerName\ActiveComputerName\ComputerName SUCCESS "IBM01"
- 37.99571510 explorer.exe:968 CloseKey HKLM\System\CurrentControlSet\Control\ComputerName\ActiveComputerName SUCCESS
- 37.99572571 explorer.exe:968 CloseKey HKLM\System\CurrentControlSet\Control\ComputerName SUCCESS
- 37.99578298 explorer.exe:968 OpenKey HKLM\System\CurrentControlSet\Services\Tcpip\Parameters SUCCESS Access: 0x20019
- 37.99579500 explorer.exe:968 QueryValue HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Hostname SUCCESS "IBM01"
- 37.99580561 explorer.exe:968 CloseKey HKLM\System\CurrentControlSet\Services\Tcpip\Parameters SUCCESS
- 37.99582405 explorer.exe:968 OpenKey HKLM\Software\Policies\Microsoft\System\DNSclient NOTFOUND
- 37.99584389 explorer.exe:968 OpenKey HKLM\System\CurrentControlSet\Services\Tcpip\Parameters SUCCESS Access: 0x20019
- 37.99585422 explorer.exe:968 QueryValue HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Domain SUCCESS ""
- 37.99586484 explorer.exe:968 CloseKey HKLM\System\CurrentControlSet\Services\Tcpip\Parameters SUCCESS
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