Fig. 2
Plot of runtime vs number of query sequences in a BLASTN tabular (−outfmt 6) results file. The graph is a linear-log plot, the number of query sequences is shown on a log scale, due to the exponential nature of runtime data and the large numbers of sequences involved. Each of the scripts were run against BLAST tabular files containing 103, 104, 105, 106 and 107 query sequences, respectively. All versions of BLAST QC were run using default parameters (no command line options specified), which is to order hit sequences for each query by e-value. To replicate this behavior using GNU sort, the command ‘sort -k1,1 -k11,11’, was used as this orders the rows in the tabular output by query id then e-value (the 1st and 11th columns respectively)