---- Redis server using tcmalloc ----

redis_version:2.2.8
redis_git_sha1:00000000
redis_git_dirty:0
arch_bits:64
multiplexing_api:epoll
process_id:7898
uptime_in_seconds:584
uptime_in_days:0
lru_clock:1018748
used_cpu_sys:106.19
used_cpu_user:6.12
used_cpu_sys_childrens:0.00
used_cpu_user_childrens:0.00
connected_clients:1
connected_slaves:0
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
used_memory:5831217760
used_memory_human:5.43G
used_memory_rss:6141042688
mem_fragmentation_ratio:1.05
mem_allocator:tcmalloc-1.7
loading:0
aof_enabled:0
changes_since_last_save:0
bgsave_in_progress:0
last_save_time:1310421137
bgrewriteaof_in_progress:0
total_connections_received:3
total_commands_processed:3
expired_keys:0
evicted_keys:0
keyspace_hits:0
keyspace_misses:0
hash_max_zipmap_entries:64
hash_max_zipmap_value:512
pubsub_channels:0
pubsub_patterns:0
vm_enabled:0
role:master
allocation_stats:2=20464746,6=1,8=80492,9=10333,10=30690613,11=25533274,12=72129023,13=13155916,14=15742047,15=7571868,16=345384345,17=2094,18=53605171,19=4895835,20=4120172,21=2439149,22=2187105,23=4544283,24=29379307,25=5004746,26=3548232,27=14316414,28=11243121,29=15015242,30=3456294,31=2772564,32=796120,33=639129,34=384129,35=166777,36=3524630,37=3627803,38=3073891,39=721832,40=707901,41=10151720,42=508494,43=83004,44=3332739,45=7334309,46=1071844,47=33263679,48=271030,49=640924,50=777359,51=2760569,52=392186,53=579401,54=4401910,55=460659,56=354570,57=236516,58=725347,59=820782,60=289807,61=320372,62=393785,63=460805,64=669062,65=588722,66=518429,67=569796,68=2534421,69=297487,70=422837,71=693891,72=786781,73=659377,74=623958,75=2464035,76=318180,77=292104,78=245755,79=501384,80=521893,81=617450,82=745190,83=2769757,84=438253,85=331392,86=305905,87=195555,88=381913,89=324316,90=298790,91=736683,92=434802,93=442743,94=416592,95=267852,96=436606,97=616944,98=990225,99=562507,100=427873,101=488034,102=322217,103=285918,104=240833,105=303460,106=762344,107=445933,108=239008,109=201597,110=213850,111=262606,112=285008,113=368759,114=325097,115=349200,116=238315,117=160636,118=134357,119=176115,120=179648,121=184586,122=257261,123=462218,124=276951,125=293206,126=161638,127=177739,128=327008,129=191363,130=260821,131=147532,132=328098,133=205123,134=205662,135=277741,136=184339,137=285930,138=140762,139=148726,140=143353,141=144630,142=181106,143=235856,144=201843,145=221025,146=324106,147=188620,148=212710,149=182782,150=143325,151=203935,152=169214,153=228068,154=224747,155=223851,156=141957,157=168207,158=175277,159=262104,160=160802,161=253529,162=181265,163=299852,164=215284,165=254335,166=169651,167=208568,168=174881,169=142984,170=195311,171=184755,172=174909,173=201990,174=227330,175=166461,176=157336,177=124063,178=224262,179=145293,180=141797,181=126876,182=163637,183=152452,184=219413,185=172908,186=154449,187=138362,188=134519,189=163566,190=113461,191=119267,192=224259,193=132680,194=223432,195=195986,196=160736,197=309321,198=160161,199=323585,200=131876,201=226026,202=141643,203=130663,204=268652,205=126722,206=172949,207=158038,208=115136,209=138372,210=134374,211=137573,212=150073,213=163813,214=170546,215=143958,216=115569,217=95529,218=120833,219=118349,220=153093,221=132830,222=118617,223=198635,224=150495,225=148086,226=192649,227=125676,228=273005,229=222592,230=379135,231=114038,232=166830,233=112749,234=236243,235=105273,236=435214,237=97600,238=446596,239=96276,240=117273,241=88353,242=143781,243=95537,244=468473,245=128062,246=128533,247=87684,248=83206,249=83156,250=89462,251=79984,252=86652,253=79652,254=99241,255=98964,>=256=26725055
db0:keys=20464749,expires=0

---- fetch, delete, fetch commands run ----
-- keys2fetch.txt contain hgetall on 1024151 keys
-- keys2delete.txt contains hgetall followed by del on 1024407 keys

[root@benchmark shard2]# time /usr/local/bin/redis-cli -p 6382 < keys2fetch.txt > /dev/null 

real    2m2.832s
user    0m26.370s
sys     0m55.840s
[root@benchmark shard2]# time /usr/local/bin/redis-cli -p 6382 < keys2delete.txt > /dev/null

real    3m54.880s
user    0m48.716s
sys     1m52.009s
[root@benchmark shard2]# time /usr/local/bin/redis-cli -p 6382 < keys2fetch.txt > /dev/null 

real    2m2.362s
user    0m21.396s
sys     0m50.441s

---- INFO output after the deletes ----

redis_version:2.2.8
redis_git_sha1:00000000
redis_git_dirty:0
arch_bits:64
multiplexing_api:epoll
process_id:7898
uptime_in_seconds:1397
uptime_in_days:0
lru_clock:1018829
used_cpu_sys:138.10
used_cpu_user:56.39
used_cpu_sys_childrens:0.00
used_cpu_user_childrens:0.00
connected_clients:1
connected_slaves:0
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
used_memory:5525084128
used_memory_human:5.15G
used_memory_rss:6141136896
mem_fragmentation_ratio:1.11
mem_allocator:tcmalloc-1.7
loading:0
aof_enabled:0
changes_since_last_save:1024406
bgsave_in_progress:0
last_save_time:1310421137
bgrewriteaof_in_progress:0
total_connections_received:7
total_commands_processed:4097119
expired_keys:0
evicted_keys:0
keyspace_hits:3072708
keyspace_misses:0
hash_max_zipmap_entries:64
hash_max_zipmap_value:512
pubsub_channels:0
pubsub_patterns:0
vm_enabled:0
role:master
allocation_stats:2=20464746,6=1,8=80493,9=3083048,10=30692840,11=25535348,12=73155876,13=15860811,14=16109865,15=7571868,16=369973541,17=1021095,18=53605171,19=6957765,20=4120172,21=2446004,22=2187105,23=5305329,24=35524739,25=6230366,26=3548232,27=14333821,28=11243121,29=15332167,30=3456294,31=3156378,32=796123,33=639130,34=384129,35=166822,36=3524630,37=3627804,38=3073891,39=722188,40=710132,41=10917026,42=508494,43=1327455,44=3332739,45=7352963,46=1071844,47=37409434,48=271046,49=694311,50=777359,51=2798936,52=392186,53=613662,54=4401910,55=531260,56=3427278,57=278409,58=725347,59=1123986,60=289807,61=574253,62=393785,63=481298,64=669064,65=635238,66=518429,67=651900,68=2534421,69=303080,70=422837,71=696050,72=786781,73=660546,74=623958,75=2470344,76=318180,77=744609,78=245755,79=1089920,80=521893,81=710703,82=745190,83=2879998,84=438253,85=387530,86=305905,87=235516,88=381917,89=392707,90=298790,91=808609,92=434802,93=603820,94=416592,95=770798,96=436606,97=629995,98=990225,99=569829,100=427873,101=500675,102=322217,103=305619,104=240833,105=362302,106=762344,107=486998,108=239008,109=208750,110=213850,111=278730,112=285008,113=652494,114=325097,115=591267,116=238315,117=182735,118=134357,119=224922,120=179648,121=207063,122=257261,123=481548,124=276951,125=296623,126=161638,127=180825,128=327009,129=203226,130=260821,131=158600,132=328098,133=212665,134=205662,135=290486,136=184339,137=288769,138=140762,139=154974,140=143353,141=150085,142=181106,143=244931,144=201843,145=224877,146=324106,147=562810,148=212710,149=228966,150=143325,151=282290,152=169214,153=386610,154=224747,155=285564,156=141957,157=357270,158=175277,159=334177,160=160802,161=292890,162=181265,163=406806,164=215284,165=276555,166=169651,167=236127,168=174881,169=158336,170=195311,171=216647,172=174909,173=750001,174=227330,175=582823,176=157336,177=160820,178=224262,179=187821,180=141797,181=216831,182=163637,183=210517,184=219413,185=537407,186=154449,187=207642,188=134519,189=184493,190=113461,191=136646,192=224259,193=143498,194=223432,195=209873,196=160736,197=321234,198=160161,199=331384,200=131876,201=237476,202=141643,203=147010,204=268652,205=161732,206=172949,207=175003,208=115136,209=164601,210=134374,211=163050,212=150073,213=236671,214=170546,215=156655,216=115569,217=105061,218=120833,219=147929,220=153093,221=153372,222=118617,223=212737,224=150495,225=161058,226=192649,227=135834,228=273005,229=254412,230=379135,231=126532,232=166830,233=119597,234=236243,235=108885,236=435214,237=101375,238=446596,239=103407,240=117273,241=95706,242=143781,243=101165,244=468473,245=133715,246=128533,247=105875,248=83206,249=93425,250=89462,251=93814,252=86652,253=91285,254=99241,255=108485,>=256=30918498
db0:keys=19440343,expires=0