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over continents, caused them headaches. They created a tool called Akkio that always tries to store the data in the geographical vicinity of the requester, which proved possible for around 80 percent ... The open source Apache Cassandra database claims to be fail-safe, economical, highly scalable, and easy to manage. A few exercises show whether it lives up to its advertising.

in Sheepdog # dog vdi list Name Id Size Used Shared Creation time VDI id Copies Tag s ntestvm1.img 4 8.0 GB 0.0 MB 2.7 GB 2014-02-05 15:04 982a39 2 feb

_name wochentags alias Robot Robot monday 07:00-17:00 tuesday 07:00-17:00 wednesday 07:00-17:00 thursday

= www.thisisagreatwebsite.com, *.thisisagreatwebsite.com TLScertFile = /etc/hiawatha/certs/ default-serverkey.pem RequireTLS = yes #redirect port 80 to 443 WebsiteRoot = /var

 mtime age file in days:  0.016  days    Standard deviation mtime age in days:  590.7352  days      *** Mtime interval summary     [   0-   1 days]:    176  (  0.05%)  (  0.05% cumulative)    [   1-   2 days]:      0  (  0.00

/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await r_await w_await svctm %util md1 0.00 0.00 0.04 0.05 0.00 0.00 8.17 0.00 0.00 0.00 0.00 0.00

.5 GB 7.8% (17.9% cumulative) 6.7 GB 6.8% (24.7% cumulative) 8.9 GB 6.3% (30.9% cumulative) 11.2 GB 5.9% (36.9% cumulative) 13.4 GB 5.7% (42.6% cumulative) 15.7 GB 5.4% (48.0% cumulative) 17.9 GB 5

= [size][size]int {{0},{0},} 08 09 for i := 0; i < size; i++ { 10 for j := 0; j < size; j++ { 11 array[i][j]++ 12 } 13 } 14 15

# sudo apt-get install software-properties-common # sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xF1656F24C74CD1D8 # sudo add-apt-repository 'deb [arch=amd64,arm64,ppc64el] http

.4.6 . Testa OpenMP MPI OpenMP 1.4.4 % Difference BT 35,819.75 26,850.06 25.00% CG 7,110.39 8,545.62 17% EP 630.80