Sachin Gaikwad
MS Student
File systems and Storage Lab
Computer Science Department
Stony Brook University
New York

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About Me

• I am a Masters student in the Computer Science Department at Stony Brook University.
• I work in the File systems and Storage Lab under the guidance of Prof. Erez Zadok.
• I did my B.E.(Hons.) in Computer Science from Birla Institute of Technology & Science (BITS), Pilani, India.
• I worked for Sun Microsystems and Flextronics Software Systems before joining here.

Contact Information

Projects

• Valor: A Transactional File Interface (Publication)
  
  Valor is a new transactional file interface that allows processes to perform fast asynchronous (ACI), or synchronous (ACID) transactions if they want, without incurring overheads on other processes, increasing the complexity of the kernel, reduplicating kernel functionality, or limiting their operation to specific devices of file systems. Valor has new system calls to provide usual transactional functions like begin, append, commit and resolve. It uses separate log device, does transition logging and maintains simple write ordering through an atomic block update of a single bit.
  
  
• Semautofs: Semantically-aware Automouting User-space File System
  
  We are trying to investiage the application of an auto-mounted user-based file system to increase semantic awareness of the system. In this file system each user written program would act as a file system on its own that mount on demand when the file is accessed. A system like this could allow us to symbolically represent files mutated by programs, decreasing repeat data, increasing asynchrony (e.g. lazy evaluation). Click here to know more about it.
  

Publications

• Enabling Transactional File Access via Lightweight Kernel Extensions (BibTeX) (PDF)
  Richard Spillane, Sachin Gaikwad, Erez Zadok, Charles P. Wright and Manjunath Chinni
  To appear in 7th USENIX Conference on File and Storage Technologies (FAST 2009)
  

Internships

• Sun Microsystems, Menlo Park, California (ZFS Team)
  [June 2009 - August 2008]
  Optimized initialization of ZVOLs as a dump device. Optimiation techniques included saving unnecessary I/Os to disks, by passing ARC cache buffers and some minor code optimizations. Initilization time was improved by 87% along with 68% memory optimization. .
  

• IBM India Pvt. Ltd.,India (Linux Technology Center)
  [July 2004 - December 2004]
  Developed a prototype for reducing scheduling latencies under heavy interrupt load and a dynamic RT priority patch for 2.6 Linux kernel.
  

Teaching Assistantship

• Spring 2005 : Computer Programming-I         BITS-Pilani (Prof. Bharath M. Deshpande)
  

Courses

• CSE 506 : Operating Systems, Prof. Erez Zadok
  
• CSE 548 : Analysis of Algorithms, Prof. Jie Gao
  
• CSE 508 : Network Security, Prof. Radu Sion
  

• CSE 533 : Network Programming, Prof. Hussein G. Badr
  
• CSE 594 : Distributed Systems, Prof. Qin Lv
  
• CSE 547 : Discrete Mathematics, Prof. Anita Wasilewska
  

• CSE 502 : Computer Architecture, Prof. Larry Wittie
  
• CSE 515 : Introduction to Transaction Processing Systems, Prof. Radu Grosu
  

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