网络存储系统NSS基准性能测试(7.31)

传送门 ☞ Android兵器谱 ☞ 转载请注明 ☞ http://blog.csdn.net/leverage_1229

一、实验参数列表

二、MATLAB脚本（balanced job bounds.m）

clear; N = input('SAN Performance N = ');L = input('Queue length L = ');Z = input('Thinking time Z = '); %testing a group of datas% N = 60;% L = 32;% Z = 0.23; %model M/M/1 %hostE1 = 1/(64*33/8)+0.0002;for n = 1 : L    u(n) = (sqrt(n*n+4*n)-n)/2;    %utilization in percent    rate(1,n) = u(n)/E1;   %I/O request rate in IOPS    arate1 = sum(rate(1,n))/n;end     D(1) = E1 + arate1*(E1^2)/(2*(1-arate1*E1)); %fcfE2 = 1/1062.5;for n = 1 : L    arate2 = rate(1,n);    D(2) = arate2*(E2^2)/(2*(1-arate2*E2));end %dacch = 2.283;v = 2.798;E3 = 1/(64*66/8)+0.00016;E4 = 1/(64*66/8)+0.00018;ts = E3+(E3^2)*sqrt(1.39794);for n = 1 : L    u(n) = (sqrt(n*n+4*n)-n)/2;    %utilization in percent    rate(3,n) = u(n)/E3;   %I/O request rate in IOPS     rate(4,n) = u(n)/E4;   %I/O request rate in IOPS     arate3 = sum(rate(3,n))/n;    arate4 = sum(rate(4,n))/n;    D(3)=ts+((0.5*(h+(4*v-3*h-1)*0.5)+2*(1+h-2*v)*0.25)*(1/(E3^2))*arate3*E3*(2*(E3^2)))/((1/E3)-arate3);D(4)=ts+((0.5*(h+(4*v-3*h-1)*0.5)+2*(1+h-2*v)*0.25)*(1/(E4^2))*arate4*E3*(2*(E4^2)))/((1/E3)-arate4);end Dmax = max(D(1:4));                             % maximum service demand per code              Dsum = D(1)+D(2)+D(3)+D(4);           % sum of total service demandsDavg = Dsum/4;                                  % average service demand per queue for n = 1:N    Rmin(n) = max(n * Dmax - Z, Dsum + ((n-1)*Davg*Dsum/(Dsum+Z))); % lower bound of response time     Rmax(n) = Dsum + ((n-1)*Dmax*(n-1)*Dsum/(((n-1)*Dsum)+Z));      % upper bound of response time    end % response time of MVAfor m = 2:4    L(m) = 0;                    end    for n = 1:N    R(1) = D(1);    for m = 2:4        R(m) = D(m) * (1 + L(m));    end    Tau = n / sum(R(:));    for m = 2:4        L(m) = Tau * R(m);              end        Rn(n,1) = D(1);    for m = 2:4        Ln(n,m) = L(m);        Rn(n,m) = R(m);    end    Taun(n) = Tau;end    for n = 1:N        RTn(n) = sum(Rn(n,2:4));      % average response time    end t = 1:N; % response time figure(1), plot(t, Rmin, 'g', t, RTn, 'r', t, Rmax, 'b'),xlabel('SAN performance (MB/s)'),ylabel('Response time(s)');

三、NSS（网络存储系统）边界性能