benchmarks: expose more stat info for comparison
benchmarks: expose more stat info for comparison

Zirpon/tchannel,sasa233/tchannel,RyanTech/tchannel,RyanTech/tchannel,vanloswang/tchannel,vanloswang/tchannel,benfleis/tchannel,savaki/tchannel,savaki/tchannel,RyanTech/tchannel,benfleis/tchannel,chenwenbin928/tchannel,sasa233/tchannel,i/tchannel,chenwenbin928/tchannel,bunnyblue/tchannel,bunnyblue/tchannel,savaki/tchannel,bunnyblue/tchannel,vanloswang/tchannel,hustxiaoc/tchannel,chenwenbin928/tchannel,i/tchannel,i/tchannel,Zirpon/tchannel,hustxiaoc/tchannel,Zirpon/tchannel,benfleis/tchannel,sasa233/tchannel,hustxiaoc/tchannel