17940430. DYNAMIC ROWHAMMER MANAGEMENT simplified abstract (QUALCOMM Incorporated)
Contents
DYNAMIC ROWHAMMER MANAGEMENT
Organization Name
Inventor(s)
Victor Van Der Veen of Leusden (NL)
Pankaj Deshmukh of San Diego CA (US)
Behnam Dashtipour of San Diego CA (US)
DYNAMIC ROWHAMMER MANAGEMENT - A simplified explanation of the abstract
This abstract first appeared for US patent application 17940430 titled 'DYNAMIC ROWHAMMER MANAGEMENT
Simplified Explanation
The abstract describes a method to mitigate or manage the effect of "rowhammer" on a DRAM device by using a memory controller to monitor and control row activations.
- Memory controller receives activation count threshold value from DRAM device
- Detects row activation commands sent to DRAM device
- Counts number of row activation commands
- Sends mitigative refresh command to DRAM device based on comparison of counted row activation commands with threshold value
Potential Applications
- Data centers
- High-performance computing
- Mobile devices
Problems Solved
- Mitigating rowhammer effect on DRAM devices
- Preventing data corruption and system crashes
Benefits
- Improved reliability of DRAM devices
- Extended lifespan of memory modules
- Enhanced system performance and stability
Original Abstract Submitted
Mitigating or managing an effect known as “rowhammer” upon a DRAM device may include a memory controller receiving an activation count threshold value from the DRAM device. The memory controller may detect row activation commands directed to the DRAM device and count the number of the row activation commands. The memory controller may send a mitigative refresh command to the DRAM device based on the result of comparing the counted number of row activation commands with the received activation count threshold value.
