Improve counters 99th latency benchmark.
Improve counters 99th latency benchmark.

dumbunny/vitess,sougou/vitess,sougou/vitess,mapbased/vitess,applift/vitess,rnavarro/vitess,erzel/vitess,enisoc/vitess,rnavarro/vitess,aaijazi/vitess,AndyDiamondstein/vitess,erzel/vitess,applift/vitess,enisoc/vitess,enisoc/vitess,mattharden/vitess,pivanof/vitess,sougou/vitess,tinyspeck/vitess,mapbased/vitess,tinyspeck/vitess,tirsen/vitess,davygeek/vitess,mattharden/vitess,HubSpot/vitess,AndyDiamondstein/vitess,dumbunny/vitess,alainjobart/vitess,mapbased/vitess,HubSpot/vitess,dcadevil/vitess,mapbased/vitess,tirsen/vitess,tinyspeck/vitess,alainjobart/vitess,sougou/vitess,aaijazi/vitess,rnavarro/vitess,dcadevil/vitess,aaijazi/vitess,erzel/vitess,applift/vitess,AndyDiamondstein/vitess,erzel/vitess,enisoc/vitess,rnavarro/vitess,tinyspeck/vitess,rnavarro/vitess,dcadevil/vitess,alainjobart/vitess,mahak/vitess,tirsen/vitess,rnavarro/vitess,rnavarro/vitess,pivanof/vitess,erzel/vitess,aaijazi/vitess,mapbased/vitess,mattharden/vitess,alainjobart/vitess,AndyDiamondstein/vitess,dcadevil/vitess,HubSpot/vitess,aaijazi/vitess,vitessio/vitess,aaijazi/vitess,AndyDiamondstein/vitess,mattharden/vitess,davygeek/vitess,AndyDiamondstein/vitess,pivanof/vitess,erzel/vitess,sougou/vitess,davygeek/vitess,tirsen/vitess,davygeek/vitess,tirsen/vitess,rnavarro/vitess,alainjobart/vitess,sougou/vitess,enisoc/vitess,dumbunny/vitess,erzel/vitess,alainjobart/vitess,dumbunny/vitess,mahak/vitess,dumbunny/vitess,davygeek/vitess,dumbunny/vitess,aaijazi/vitess,applift/vitess,mattharden/vitess,pivanof/vitess,HubSpot/vitess,applift/vitess,mattharden/vitess,tirsen/vitess,HubSpot/vitess,vitessio/vitess,applift/vitess,sougou/vitess,erzel/vitess,vitessio/vitess,tirsen/vitess,mapbased/vitess,erzel/vitess,vitessio/vitess,AndyDiamondstein/vitess,enisoc/vitess,dumbunny/vitess,mapbased/vitess,mattharden/vitess,aaijazi/vitess,davygeek/vitess,HubSpot/vitess,AndyDiamondstein/vitess,pivanof/vitess,tirsen/vitess,erzel/vitess,applift/vitess,applift/vitess,mattharden/vitess,mapbased/vitess,HubSpot/vitess,dumbunny/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,AndyDiamondstein/vitess,dumbunny/vitess,HubSpot/vitess,alainjobart/vitess,mattharden/vitess,tinyspeck/vitess,dcadevil/vitess,vitessio/vitess,vitessio/vitess,dumbunny/vitess,applift/vitess,mahak/vitess,applift/vitess,pivanof/vitess,mahak/vitess,dcadevil/vitess,mahak/vitess,enisoc/vitess,tinyspeck/vitess,davygeek/vitess,dcadevil/vitess,alainjobart/vitess,tirsen/vitess,pivanof/vitess,aaijazi/vitess,rnavarro/vitess,mapbased/vitess,mahak/vitess,mahak/vitess,pivanof/vitess,pivanof/vitess,mapbased/vitess,mattharden/vitess,vitessio/vitess,sougou/vitess