Auf wieviel speicher kann man das Teil maximal erweitern?
Garnicht, wenn Du es nicht zerstören möchtest:
Surface Pro 3 SSD Upgrade: Surface Pro 3 SSD Upgrade I7 with 1 TB SSD!!!
MS finanziert die Geräte über unverschämte Preise für größere Modfelle (300€ Aufpreis von 256 GB auf 512 GB SSD). Da hilft nur die richtige Version zu kaufen, Surface Pro 3 mit 8/256 nicht derzeit nicht gerade selten und dafür recht günstig, wenn einen die Eigenheiten nicht stören.
Dir sollte aber klar sein, dass
(a) es sich beim Pro2 und Pro3 um recht alte Geräte handelt, die Akkulaufzeit also nur noch dann sehr gut ist, wenn es ein Gerät von Privat mit wenig Nutzung ist, dessen Akku auch recth gut behandelt wurde.
(b) das Pro2 und Pro3 einen Lüfter haben, der auch nicht unhörbar bleibt, wenn man die Rechenleistung der CPU nutzt
(c) der Akku genauso wie Ram/SSD nicht wechselbar ist.
Falls Du ein günstiges 10,8" (16:9) lüfterloses Windows-Tablet suchst, bei dem man wenigstens SSD und Akku tauschen kann, solltest Du Dir mal des Dell Venue 11 Pro 7140 ansehen. nicht aber das 7130/7139/51xx. Die 713x sind nicht lüfterlos, das 51xx hat eine lahme Atom-CPU und ist m.W.n. nicht erweiterbar.
Das 7140 (mit 4GB Ram und 128GB SSD) ist derzeit für 160-200€ zu bekommen und hat für mich als einzigen Nachteil zum Surface Pro 2 keinen integrierten Ständer.
Also ich hätte eventuell erwähnen müssen, dass der Test so ca 10 Minuten laufen müsste um ein realistisches Abbild zu bekommen..
Das ist genauso (un)realistisch wie der Test über eine Minute. Man kann an Windows soviel kaputt konfigurieren, dass diese Tests nur zeigen, wie das Gerät mit meiner zufällig gewählten Config reagiert.
Da schlägt der Screensaver zu (Log vom Dell nach 10 Min.), das Tablet aktiviert während dem Test das WLan, Windows führt irgendeinen Task im Hintergrund aus oder es sind unterschiedliche Energieprofile eingestellt.
Alles Dinge, die man bei einer echten Nutzung für solche Anwendungen halt einfach passend einstellt, ich jetzt aber mit Sicherheit weder verdrehe noch langwierig analysiere (die 904,0 µs beim SPro war ein einziger unbekannter Task, vermutlich exakt nach 10 Min oder zu einer spezielen Uhrzeit). Ich kann beide Tablets problemlos als WLan-Fernseher nutzen, mehr "Echtzeitfähigkeiten" benötige ich nicht.
dpc latency checker (das andere Programm) muss nicht installiert werden...
Es liefert aber laut den beiden angegebenen Links Schwachsinnige Ergebnisse, und das seit Win 8.
Der Witz ist eher, dass auch LatencyMon nicht installiert werden muss. Hat man die Dateien einmal extrahiert, kann man einfach den Programmordner kopieren.
Dell Venue 11 Pro 7140 (Intel Core M 5Y10)
Code:
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CONCLUSION
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Your system appears to be suitable for handling real-time audio and other tasks without dropouts.
LatencyMon has been analyzing your system for 0:11:55 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name:
OS version: Windows 10 , 10.0, version 1903, build: 18362 (x64)
Hardware: Venue 11 Pro 7140, Dell Inc., 0321KP
CPU: GenuineIntel Intel(R) Processor 5Y10 CPU @ 0.80GHz
Logical processors: 4
Processor groups: 1
RAM: 3979 MB total
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CPU SPEED
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Reported CPU speed: 998 MHz
Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.
WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.
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MEASURED INTERRUPT TO USER PROCESS LATENCIES
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The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.
Highest measured interrupt to process latency (µs): 499,40
Average measured interrupt to process latency (µs): 17,573985
Highest measured interrupt to DPC latency (µs): 485,10
Average measured interrupt to DPC latency (µs): 5,095786
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REPORTED ISRs
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Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.
Highest ISR routine execution time (µs): 105,200401
Driver with highest ISR routine execution time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Highest reported total ISR routine time (%): 0,013308
Driver with highest ISR total time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Total time spent in ISRs (%) 0,013616
ISR count (execution time <250 µs): 10069
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 µs): 0
ISR count (execution time >=4000 µs): 0
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REPORTED DPCs
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DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.
Highest DPC routine execution time (µs): 580,170341
Driver with highest DPC routine execution time: NDIS.SYS - NDIS (Network Driver Interface Specification), Microsoft Corporation
Highest reported total DPC routine time (%): 0,016646
Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.
Total time spent in DPCs (%) 0,084099
DPC count (execution time <250 µs): 226326
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 229
DPC count (execution time 1000-1999 µs): 0
DPC count (execution time 2000-3999 µs): 0
DPC count (execution time >=4000 µs): 0
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REPORTED HARD PAGEFAULTS
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Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.
NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.
Process with highest pagefault count: lockapp.exe
Total number of hard pagefaults 1650
Hard pagefault count of hardest hit process: 168
Number of processes hit: 44
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 6,900522
CPU 0 ISR highest execution time (µs): 105,200401
CPU 0 ISR total execution time (s): 0,389301
CPU 0 ISR count: 10021
CPU 0 DPC highest execution time (µs): 580,170341
CPU 0 DPC total execution time (s): 1,982038
CPU 0 DPC count: 198742
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CPU 1 Interrupt cycle time (s): 2,729183
CPU 1 ISR highest execution time (µs): 5,020040
CPU 1 ISR total execution time (s): 0,000114
CPU 1 ISR count: 29
CPU 1 DPC highest execution time (µs): 446,708417
CPU 1 DPC total execution time (s): 0,073138
CPU 1 DPC count: 4862
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CPU 2 Interrupt cycle time (s): 2,907278
CPU 2 ISR highest execution time (µs): 4,180361
CPU 2 ISR total execution time (s): 0,000033
CPU 2 ISR count: 12
CPU 2 DPC highest execution time (µs): 307,184369
CPU 2 DPC total execution time (s): 0,242822
CPU 2 DPC count: 15013
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CPU 3 Interrupt cycle time (s): 2,228689
CPU 3 ISR highest execution time (µs): 5,831663
CPU 3 ISR total execution time (s): 0,000029
CPU 3 ISR count: 7
CPU 3 DPC highest execution time (µs): 330,951904
CPU 3 DPC total execution time (s): 0,107605
CPU 3 DPC count: 7938
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Surface Pro 2 (Intel i5-4200U)
Code:
_________________________________________________________________________________________________________
CONCLUSION
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Your system appears to be suitable for handling real-time audio and other tasks without dropouts.
LatencyMon has been analyzing your system for 0:12:56 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name:
OS version: Windows 10 , 10.0, version 1903, build: 18362 (x64)
Hardware: Surface Pro 2, Microsoft Corporation
CPU: GenuineIntel Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
Logical processors: 4
Processor groups: 1
RAM: 4016 MB total
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CPU SPEED
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Reported CPU speed: 2295 MHz
Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.
WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature.
_________________________________________________________________________________________________________
MEASURED INTERRUPT TO USER PROCESS LATENCIES
_________________________________________________________________________________________________________
The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.
Highest measured interrupt to process latency (µs): 904,0
Average measured interrupt to process latency (µs): 18,070669
Highest measured interrupt to DPC latency (µs): 444,20
Average measured interrupt to DPC latency (µs): 4,055490
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REPORTED ISRs
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Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.
Highest ISR routine execution time (µs): 68,714161
Driver with highest ISR routine execution time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Highest reported total ISR routine time (%): 0,000577
Driver with highest ISR total time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Total time spent in ISRs (%) 0,000872
ISR count (execution time <250 µs): 2117
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 µs): 0
ISR count (execution time >=4000 µs): 0
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REPORTED DPCs
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DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.
Highest DPC routine execution time (µs): 518,121569
Driver with highest DPC routine execution time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Highest reported total DPC routine time (%): 0,030260
Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.
Total time spent in DPCs (%) 0,070944
DPC count (execution time <250 µs): 252658
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 153
DPC count (execution time 1000-1999 µs): 0
DPC count (execution time 2000-3999 µs): 0
DPC count (execution time >=4000 µs): 0
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REPORTED HARD PAGEFAULTS
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Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.
NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.
Process with highest pagefault count: svchost.exe
Total number of hard pagefaults 940
Hard pagefault count of hardest hit process: 314
Number of processes hit: 28
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 5,913529
CPU 0 ISR highest execution time (µs): 68,714161
CPU 0 ISR total execution time (s): 0,026034
CPU 0 ISR count: 1918
CPU 0 DPC highest execution time (µs): 518,121569
CPU 0 DPC total execution time (s): 2,010964
CPU 0 DPC count: 243218
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CPU 1 Interrupt cycle time (s): 3,090448
CPU 1 ISR highest execution time (µs): 9,064488
CPU 1 ISR total execution time (s): 0,000867
CPU 1 ISR count: 170
CPU 1 DPC highest execution time (µs): 98,141176
CPU 1 DPC total execution time (s): 0,036585
CPU 1 DPC count: 2316
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CPU 2 Interrupt cycle time (s): 2,453970
CPU 2 ISR highest execution time (µs): 7,882353
CPU 2 ISR total execution time (s): 0,000090
CPU 2 ISR count: 17
CPU 2 DPC highest execution time (µs): 502,797821
CPU 2 DPC total execution time (s): 0,083192
CPU 2 DPC count: 4176
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CPU 3 Interrupt cycle time (s): 2,654439
CPU 3 ISR highest execution time (µs): 7,270588
CPU 3 ISR total execution time (s): 0,000064
CPU 3 ISR count: 12
CPU 3 DPC highest execution time (µs): 164,031808
CPU 3 DPC total execution time (s): 0,071527
CPU 3 DPC count: 3101
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