# # libpmemobj-cpp workshop # # These are the materials used during the workshop: # slides.pdf contains the slides shown # Commands demonstrated during the workshop are listed below. # Source files for programming examples are in this repo. # # These instructions are designed to work on the workshop guest VMs. # Start by cloning this repo, so you can easily cut and paste commands from # this README into your shell. # # Many of the sys admin steps described here can be found in the # Getting Started Guide on pmem.io: # https://docs.pmem.io/getting-started-guide # # Start by making a clone of this repo... # git clone https://github.com/pmemhackathon/2019-04-08 cd 2019-04-08 # # Compile examples. # make # # Warmup - a simple persistent counter. # # pmempool create obj may fail since the SDS feature see: # https://github.com/pmem/issues/issues/1039 # when you create the pool by the pmempool create, you may need use the command: # PMEMOBJ_CONF="sds.at_create=0" pmempool create obj --layout=queue -s 100M /mnt/pmem-fsdax/queue # pmempool create obj --layout=warmup -s 100M /mnt/pmem-fsdax0/pmdkuserX/warmup ./warmup /mnt/pmem-fsdax0/pmdkuserX/warmup # # find_bugs.cpp # # Program which contains few bugs. Can you find them? # pmempool create obj --layout=find_bugs -s 100M /mnt/pmem-fsdax0/pmdkuserX/find_bugs ./find_bugs /mnt/pmem-fsdax0/pmdkuserX/find_bugs # run find-bugs under pmemcheck valgrind --tool=pmemcheck ./find_bugs /mnt/pmem-fsdax0/pmdkuserX/find_bugs # # queue.cpp # # Simple implementation of a volatile queue. # ./queue push 1 push 2 push 3 pop show # # queue_pmemobj.cpp # # Simple implementation of a persistent queue. # pmempool create obj --layout=queue -s 100M /mnt/pmem-fsdax0/pmdkuserX/queue pmempool info /mnt/pmem-fsdax0/pmdkuserX/queue ./queue_pmemobj /mnt/pmem-fsdax0/pmdkuserX/queue push 1 push 2 push 3 pop show # # simplekv_simple.cpp # # Hashmap test program. # pmempool create obj --layout=simplekv -s 100M /mnt/pmem-fsdax0/pmdkuserX/simplekv-simple pmempool info /mnt/pmem-fsdax0/pmdkuserX/simplekv-simple ./simplekv_simple /mnt/pmem-fsdax0/pmdkuserX/simplekv-simple # # simplekv_word_count.cpp # # A C++ program which reads words to a simplekv hashtable and uses MapReduce # to count words in specified text files. # pmempool create obj --layout=simplekv -s 100M /mnt/pmem-fsdax0/pmdkuserX/simplekv-words pmempool info /mnt/pmem-fsdax0/pmdkuserX/simplekv-words ./simplekv_word_count /mnt/pmem-fsdax0/pmdkuserX/simplekv-words words1.txt words2.txt