Robert Feldman Email & Phone Number

Santa Clara, California, US

• Led Full Stack Ubuntu Integration and Bringup for SoundWire audio subsystem, on AlderLake and Raptor Lake platforms.
• Coordinated efforts across Intel SOF kernel and Realtek audio codec drivers teams, to debugand resolve SoundWire Ubuntu bringup issues.
• Developed audio drivers debug instrumentation and scripts to monitor and analyze state ofcodec registers and behavior of audio pipelines.
• Integrated and debugged HW and SW audio subsystem components.
• Customized configuration of Realtek AIOC boards, using Gen31 datasheets andschematics
• Worked with HW team to enable SoundWire audio links, by reworking resistors onRVPs.

• Designed an environmental management subsystem for the next-gen Pavilion Flash StorageArray, utilizing AST2600 BMC and OpenBMC Framework. Collaborated with Platform andHardware architects.
• Enhanced reliability, availability, and serviceability features of Pavilion flash storage arrays.
• Integrated AMI AST2600 BMC eval board, Marvell 88E6321 eth switch, and early hardwareprototypes of next-gen fan controller and PSU interface modules.
• Customized OBMC stack, to monitor sensors. Brought up Active/Standby BMC configuration.
• Enhanced Pavilion Storage Arrays, by adding Atmel ARM microcontroller support formanaging power and LED state on individual I/O Controllers and SSD drives.
• Enhanced PCI-e fabric diagnostic to graph rates of auto-recoverable errors, and to detecterror threshold crossovers.

• Automated update of embedded Linux BMC firmware. Contributed to increased adoption rateof the latest certified BMC packages, for multiple NetApp storage platforms.
• Enhanced reliability, availability, and serviceability features of NetApp storage appliances.
• Contributed to design and development of cluster-scoped BMC Management Architecture.Wrote Architecture and Functional specifications.
• Developed Data ONTAP cluster-scoped BMC management features and systemadministration commands.
• Added a feature which enables administrators to update all BMCs across a heterogeneous cluster to latest bundled/downloaded firmware images, by executing a single command.
• Extended Data ONTAP build process to bundle BMC firmware packages and applicablecompatibility tokens, for all supported platforms.

• Contributed to development, bringup, platform upgrade, and performance optimization of virtualized Cisco Internet Streamer Engine (eCDS), integrated with VMware ESXi.
• Extended eCDS build process by integrating new build units which include VmTools kernel modules, python, and openssl packages. Enabled paravirtualization functionality.
• Configured several clusters of virtual machines running eCDS on Supermicro ESXi hosts, using VMware vSphere.
• Characterized, analyzed, and improved eCDS performance and scalability for fully virtualized, passthrough and paravirtualized VMware configurations.

Campbell, CA, US

• Contributed to bringup, performance optimization and deployment of virtualized Linux HyperSpace platform on a wide range of x86 netbook platforms.
• Improved functionality, performance, and quality of networking, graphics, and storage Hyperspace subsystems. Hyperspace product has been purchased by Hewlett Packard.
• Integrated drivers for Atheros and Realtek wireless chipsets. Root caused and resolved OEM customer issues, including network stack, sleep/resume, and rfkill problems.
• Integrated 3D high resolution Nvidia drivers, as well as X server components and backlight driver for Intel graphics chipsets.
• Profiled and improved Hyperspace initialization and storage subsystem performance.

Santa Clara, CA, US

• Improved quality of Nvidia storage drivers to attain Windows Logo certifications.
• Root caused and resolved sleep/resume, power management, and Plug-and-Play SATA/AHCI storage driver issues, escalated by OEM partners.
• Isolated HW defects for early prototypes of storage controllers. Worked with Hardware team to drive and validate timely resolution of these defects.
• Developed an instrumentation framework to capture internal storage drivers' events timing traces. Improved troubleshooting and performance tuning capabilities.
• Characterized and tuned performance of Nvidia AHCI and Raid configurations. Performed comparative performance analysis of competitors' systems.

Houston, Texas, US

• Contributed to performance analysis and optimization of OLTP benchmark (TPC-C) infrastructure for Integrity Superdome server. Industry leading Superdome TPC-C disclosure has been published.
• Captured and analyzed temporal/spatial affinity statistics of kernel data structures’ access patterns during TPC-C runs. These experiments contributed to restructuring of key data structures to minimize cache miss.
• Designed and developed kernel context switch mechanism, used by vPars downcalls to transition from HP-UX guest kernel context to the Hypervisor context. Developed and synchronized mechanisms for transferring and saving.

San Francisco, California, US

• Designed, developed, and optimized Communications Framework components for Distributed Transparent Logging Services Infrastructure. Optimized Interceptor performance by integrating the ACE Proactor and Reactor patterns.

• Created content for three HP-UX IA64 Kernel Internals courses currently used by HP to train Engineers and Driver developers. Researched kernel algorithms, designed and created high-level architectural slides, wrote.

Houston, Texas, US

• Developed a Cell Library that defined unique I/O and Memory Configuration for an Itanium Server and integrated this Library into IA64 Simulator. Implemented and validated EFI firmware security features. Developed.

• Profiled and optimized NetPoint Secure Access Server's authentication and authorization performance on the Solaris platform. Enhanced the product by adding a credentials caching functionality and reduced overhead.
• Optimized NetPoint product deployment process by adding rule-based auto-configuration file update functionality on iPlanet Web Servers.

• Enhanced Security Enforcement Agent (firmware) and Registration Server (Java Servlets) components of the SonicWall Network Anti-Virus Service. Designed, implemented, and optimized stateful packet inspection and.

• Ported Sagent DataLoad Server product from Windows NT to Solaris platform.
• Designed and developed a test framework automating regression testing and test-results verification for the Solaris DataLoad Server product.

Houston, Texas, US

• Contributed to porting Itanium instruction set simulator (Gambit), employing a binary translation engine, from x86 platform to PA-RISC platform.
• Extended Gambit by designing and developing Unix Signals Simulation Subsystem, as well as by adding support for simulation of multiple HP-UX system calls. This feature was extensively used for Itanium toolchain.
• Extended Gambit by adding support for collecting/reporting of simulated instruction mix statistics. This feature was used by Itanium toolchain developers to improve performance of Itanium kernel, applications, and.
• Developed an automated Test Framework for validating simulated instructions, system calls, and signals.
• Designed and developed Unix RECOVERY kernels for several HP-UX releases, enabling a variety of diagnostic, troubleshooting, and system recovery tools to function when system drives fail. Analyzed and improved RECOVERY.
• Designed and developed offline I/O configuration and enumeration utilities, shared libraries and storage verification tools.