2015-02-01
Additional charts
Host zm08.stanford.edu: Total CPU
avg(user) = 3.36 avg(sys) = 0.49 avg(idle) = 93.48 avg(iowait) = 2.63 avg(nice) = 0.00 avg(irq) = 0.00 avg(softirq) = 0.04
Host zm08.stanford.edu: Individual CPU user time
avg(cpu0) = 12.48 avg(cpu1) = 11.37 avg(cpu2) = 3.65 avg(cpu3) = 2.67 avg(cpu4) = 2.66 avg(cpu5) = 2.55 avg(cpu6) = 1.37 avg(cpu7) = 1.27 avg(cpu8) = 0.91 avg(cpu9) = 7.64 avg(cpu10) = 0.83 avg(cpu11) = 2.15 avg(cpu12) = 4.63 avg(cpu13) = 3.41 avg(cpu14) = 3.53 avg(cpu15) = 2.50 avg(cpu16) = 9.30 avg(cpu17) = 1.93 avg(cpu18) = 0.95 avg(cpu19) = 2.06 avg(cpu20) = 0.69 avg(cpu21) = 0.97 avg(cpu22) = 0.58 avg(cpu23) = 0.73
Host zm08.stanford.edu: Individual CPU nice time
avg(cpu0) = 0.00 avg(cpu1) = 0.01 avg(cpu2) = 0.00 avg(cpu3) = 0.00 avg(cpu4) = 0.00 avg(cpu5) = 0.00 avg(cpu6) = 0.00 avg(cpu7) = 0.00 avg(cpu8) = 0.00 avg(cpu9) = 0.00 avg(cpu10) = 0.00 avg(cpu11) = 0.00 avg(cpu12) = 0.00 avg(cpu13) = 0.00 avg(cpu14) = 0.00 avg(cpu15) = 0.00 avg(cpu16) = 0.00 avg(cpu17) = 0.00 avg(cpu18) = 0.00 avg(cpu19) = 0.00 avg(cpu20) = 0.00 avg(cpu21) = 0.00 avg(cpu22) = 0.00 avg(cpu23) = 0.00
Host zm08.stanford.edu: Individual CPU sys time
avg(cpu0) = 1.17 avg(cpu1) = 1.17 avg(cpu2) = 0.60 avg(cpu3) = 0.53 avg(cpu4) = 0.44 avg(cpu5) = 0.49 avg(cpu6) = 0.26 avg(cpu7) = 0.27 avg(cpu8) = 0.17 avg(cpu9) = 0.87 avg(cpu10) = 0.16 avg(cpu11) = 0.35 avg(cpu12) = 0.68 avg(cpu13) = 0.53 avg(cpu14) = 0.79 avg(cpu15) = 0.67 avg(cpu16) = 0.65 avg(cpu17) = 0.43 avg(cpu18) = 0.24 avg(cpu19) = 0.39 avg(cpu20) = 0.19 avg(cpu21) = 0.22 avg(cpu22) = 0.15 avg(cpu23) = 0.20
Host zm08.stanford.edu: Individual CPU idle time
avg(cpu0) = 64.69 avg(cpu1) = 65.04 avg(cpu2) = 94.55 avg(cpu3) = 95.51 avg(cpu4) = 96.30 avg(cpu5) = 96.06 avg(cpu6) = 98.16 avg(cpu7) = 98.19 avg(cpu8) = 98.82 avg(cpu9) = 91.18 avg(cpu10) = 98.94 avg(cpu11) = 97.26 avg(cpu12) = 88.10 avg(cpu13) = 89.03 avg(cpu14) = 95.33 avg(cpu15) = 96.58 avg(cpu16) = 89.80 avg(cpu17) = 97.50 avg(cpu18) = 98.75 avg(cpu19) = 97.20 avg(cpu20) = 99.08 avg(cpu21) = 98.74 avg(cpu22) = 99.22 avg(cpu23) = 98.95
Host zm08.stanford.edu: Individual CPU iowait time
avg(cpu0) = 21.44 avg(cpu1) = 22.15 avg(cpu2) = 1.14 avg(cpu3) = 1.24 avg(cpu4) = 0.55 avg(cpu5) = 0.85 avg(cpu6) = 0.20 avg(cpu7) = 0.25 avg(cpu8) = 0.08 avg(cpu9) = 0.18 avg(cpu10) = 0.06 avg(cpu11) = 0.19 avg(cpu12) = 6.52 avg(cpu13) = 7.01 avg(cpu14) = 0.28 avg(cpu15) = 0.24 avg(cpu16) = 0.17 avg(cpu17) = 0.13 avg(cpu18) = 0.05 avg(cpu19) = 0.31 avg(cpu20) = 0.04 avg(cpu21) = 0.05 avg(cpu22) = 0.03 avg(cpu23) = 0.12
Host zm08.stanford.edu: Individual CPU irq time
avg(cpu0) = 0.00 avg(cpu1) = 0.00 avg(cpu2) = 0.00 avg(cpu3) = 0.00 avg(cpu4) = 0.00 avg(cpu5) = 0.00 avg(cpu6) = 0.00 avg(cpu7) = 0.00 avg(cpu8) = 0.00 avg(cpu9) = 0.00 avg(cpu10) = 0.00 avg(cpu11) = 0.00 avg(cpu12) = 0.00 avg(cpu13) = 0.00 avg(cpu14) = 0.00 avg(cpu15) = 0.00 avg(cpu16) = 0.00 avg(cpu17) = 0.00 avg(cpu18) = 0.00 avg(cpu19) = 0.00 avg(cpu20) = 0.00 avg(cpu21) = 0.00 avg(cpu22) = 0.00 avg(cpu23) = 0.00
Host zm08.stanford.edu: Individual CPU softirq time
avg(cpu0) = 0.20 avg(cpu1) = 0.27 avg(cpu2) = 0.05 avg(cpu3) = 0.04 avg(cpu4) = 0.03 avg(cpu5) = 0.04 avg(cpu6) = 0.01 avg(cpu7) = 0.01 avg(cpu8) = 0.01 avg(cpu9) = 0.11 avg(cpu10) = 0.00 avg(cpu11) = 0.03 avg(cpu12) = 0.06 avg(cpu13) = 0.01 avg(cpu14) = 0.05 avg(cpu15) = 0.00 avg(cpu16) = 0.07 avg(cpu17) = 0.00 avg(cpu18) = 0.00 avg(cpu19) = 0.03 avg(cpu20) = 0.00 avg(cpu21) = 0.00 avg(cpu22) = 0.00 avg(cpu23) = 0.00
Host zm08.stanford.edu: Process CPU
avg(mailbox) = 2.49 avg(mysql) = 0.39 avg(stats) = 0.00
Host zm08.stanford.edu: Process Total Memory
avg(mailbox) = 21346.31 avg(mysql) = 18137.60 avg(stats) = 0.00
Host zm08.stanford.edu: Process Resident Memory
avg(mailbox) = 8922.69 avg(mysql) = 17873.02 avg(stats) = 0.00
Host zm08.stanford.edu: Virtual Memory
avg(swapped) = 5.69 avg(free) = 864.30 avg(active) = 37922.25 avg(inactive) = 23667.37 avg(page cache) = 30320.84
Host zm08.stanford.edu: Context Switches
avg(context switches) = 5824.14
Host zm08.stanford.edu: Run/Blocked Process Queue Size, Load Average
avg(processes waiting for run time) = 1.45 avg(processes waiting for io time) = 1.05 avg(load average (1 min)) = 2.18
Host zm08.stanford.edu: Disk Utilization (Top 10 avg)
avg(sdf) = 19.68 avg(dm-0) = 11.24 avg(sdg) = 9.02 avg(dm-2) = 28.01 avg(sdl) = 19.69 avg(sdh) = 15.06 avg(dm-4) = 19.72 avg(dm-3) = 2.81 avg(sdm) = 9.03 avg(sdn) = 15.06
Host zm08.stanford.edu: Disk Throughput: /dev/sde
avg(sde read) = 0.19 avg(sde write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdf
avg(sdf read) = 733.05 avg(sdf write) = 622.21
Host zm08.stanford.edu: Disk Throughput: /dev/sda
avg(sda read) = 0.19 avg(sda write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdk
avg(sdk read) = 26.36 avg(sdk write) = 34.31
Host zm08.stanford.edu: Disk Throughput: /dev/sdt
avg(sdt read) = 0.19 avg(sdt write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdq
avg(sdq read) = 0.19 avg(sdq write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdj
avg(sdj read) = 0.38 avg(sdj write) = 127.95
Host zm08.stanford.edu: Disk Throughput: /dev/dm-0
avg(dm-0 read) = 1235.78 avg(dm-0 write) = 149.51
Host zm08.stanford.edu: Disk Throughput: /dev/sdg
avg(sdg read) = 617.73 avg(sdg write) = 74.63
Host zm08.stanford.edu: Disk Throughput: /dev/dm-1
avg(dm-1 read) = 0.36 avg(dm-1 write) = 255.79
Host zm08.stanford.edu: Disk Throughput: /dev/dm-2
avg(dm-2 read) = 1465.85 avg(dm-2 write) = 1245.83
Host zm08.stanford.edu: Disk Throughput: /dev/sdl
avg(sdl read) = 733.19 avg(sdl write) = 623.62
Host zm08.stanford.edu: Disk Throughput: /dev/sdc
avg(sdc read) = 0.19 avg(sdc write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdr
avg(sdr read) = 0.19 avg(sdr write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sds
avg(sds read) = 0.19 avg(sds write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdi
avg(sdi read) = 427.75 avg(sdi write) = 382.49
Host zm08.stanford.edu: Disk Throughput: /dev/sdh
avg(sdh read) = 1372.71 avg(sdh write) = 0.12
Host zm08.stanford.edu: Disk Throughput: /dev/dm-4
avg(dm-4 read) = 2745.02 avg(dm-4 write) = 0.27
Host zm08.stanford.edu: Disk Throughput: /dev/sdb
avg(sdb read) = 0.19 avg(sdb write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/dm-3
avg(dm-3 read) = 855.01 avg(dm-3 write) = 763.06
Host zm08.stanford.edu: Disk Throughput: /dev/sdm
avg(sdm read) = 618.44 avg(sdm write) = 74.88
Host zm08.stanford.edu: Disk Throughput: /dev/sdp
avg(sdp read) = 0.38 avg(sdp write) = 127.84
Host zm08.stanford.edu: Disk Throughput: /dev/sdn
avg(sdn read) = 1372.70 avg(sdn write) = 0.15
Host zm08.stanford.edu: Disk Throughput: /dev/sdu
avg(sdu read) = 0.19 avg(sdu write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdd
avg(sdd read) = 0.19 avg(sdd write) = 0.00
Host zm08.stanford.edu: Disk Throughput: /dev/sdo
avg(sdo read) = 427.66 avg(sdo write) = 380.56
Host zm08.stanford.edu: Disk IOPs: /dev/sde
avg(sde read) = 0.05 avg(sde write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdf
avg(sdf read) = 46.83 avg(sdf write) = 23.14
Host zm08.stanford.edu: Disk IOPs: /dev/sda
avg(sda read) = 0.05 avg(sda write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdk
avg(sdk read) = 1.12 avg(sdk write) = 1.67
Host zm08.stanford.edu: Disk IOPs: /dev/sdt
avg(sdt read) = 0.05 avg(sdt write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdq
avg(sdq read) = 0.05 avg(sdq write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdj
avg(sdj read) = 0.09 avg(sdj write) = 0.64
Host zm08.stanford.edu: Disk IOPs: /dev/dm-0
avg(dm-0 read) = 91.39 avg(dm-0 write) = 15.96
Host zm08.stanford.edu: Disk IOPs: /dev/sdg
avg(sdg read) = 45.74 avg(sdg write) = 7.98
Host zm08.stanford.edu: Disk IOPs: /dev/dm-1
avg(dm-1 read) = 0.09 avg(dm-1 write) = 1.28
Host zm08.stanford.edu: Disk IOPs: /dev/dm-2
avg(dm-2 read) = 93.57 avg(dm-2 write) = 46.27
Host zm08.stanford.edu: Disk IOPs: /dev/sdl
avg(sdl read) = 46.83 avg(sdl write) = 23.14
Host zm08.stanford.edu: Disk IOPs: /dev/sdc
avg(sdc read) = 0.05 avg(sdc write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdr
avg(sdr read) = 0.05 avg(sdr write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sds
avg(sds read) = 0.05 avg(sds write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdi
avg(sdi read) = 6.66 avg(sdi write) = 12.45
Host zm08.stanford.edu: Disk IOPs: /dev/sdh
avg(sdh read) = 31.26 avg(sdh write) = 0.01
Host zm08.stanford.edu: Disk IOPs: /dev/dm-4
avg(dm-4 read) = 62.42 avg(dm-4 write) = 0.03
Host zm08.stanford.edu: Disk IOPs: /dev/sdb
avg(sdb read) = 0.05 avg(sdb write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/dm-3
avg(dm-3 read) = 13.21 avg(dm-3 write) = 24.91
Host zm08.stanford.edu: Disk IOPs: /dev/sdm
avg(sdm read) = 45.75 avg(sdm write) = 7.98
Host zm08.stanford.edu: Disk IOPs: /dev/sdp
avg(sdp read) = 0.09 avg(sdp write) = 0.64
Host zm08.stanford.edu: Disk IOPs: /dev/sdn
avg(sdn read) = 31.26 avg(sdn write) = 0.01
Host zm08.stanford.edu: Disk IOPs: /dev/sdu
avg(sdu read) = 0.05 avg(sdu write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdd
avg(sdd read) = 0.05 avg(sdd write) = 0.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdo
avg(sdo read) = 6.66 avg(sdo write) = 12.45
Host zm08.stanford.edu: Disk Usage
avg(/opt/zimbra/redo-mysql) = 61.51 avg(/usr/vice/cache) = 13.00 avg(/opt/zimbra/store) = 64.00 avg(/opt/zimbra) = 67.00 avg(/opt/zimbra/hsm1) = 91.00 avg(/) = 8.01 avg(/opt/zimbra/redolog) = 20.47
Host zm08.stanford.edu: Open file descriptor count
avg(total system file descriptors open) = 6751.26 avg(mailboxd file descriptors open) = 3461.45
Host zm08.stanford.edu: Process CPU Time (Top 10 avg)
avg(updatedb) = 30.22 avg(java) = 2451.41 avg(gzip) = 2752.54 avg(puppetd) = 12.18 avg(mysqld) = 285.63 avg(perl) = 26.60 avg(mysqldump) = 156.21 avg(zmmailboxd) = 1795.73 avg(horsewatcher-fe) = 30.13 avg(zmcompresslogs) = 843.00
Host zm08.stanford.edu: SOAP: Invocation Count: Summary (Top 10 max)
max(MsgActionRequest.move) = 69.00 max(SearchRequest) = 61.00 max(MsgActionRequest.delete) = 136.00 max(NoOpRequest) = 93.00 max(AddMsgRequest) = 136.00 max(GetDomainInfoRequest) = 467.00 max(GetMsgRequest) = 61.00 max(GetFolderRequest) = 327.00 max(SyncRequest) = 115.00 max(GetAppointmentRequest) = 75.00
Host zm08.stanford.edu: SOAP: Average Call Duration: Summary (Top 10 avg)
avg(SendMsgRequest) = 402.20 avg(GetContactsRequest) = 387.66 avg(DeleteAccountRequest) = 31282.00 avg(BackupQueryRequest) = 569.80 avg(GetAggregateQuotaUsageOnServerRequest) = 1146.00 avg(WaitSetRequest) = 232.06 avg(MsgActionRequest.read) = 283.96 avg(SendInviteReplyRequest) = 298.86 avg(FolderActionRequest.empty) = 296.20 avg(GetQuotaUsageRequest) = 1345.00
Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Pages
avg(pages read) = 263395348.15 avg(pages written) = 95852464.90
Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Hit Rate
avg(buffer pool hit rate) = 999.08
Host zm08.stanford.edu: MySQL: Database Connections In Use
avg(connections in use) = 0.37
Host zm08.stanford.edu: MySQL: Tables Open/Opened
avg(open_tables) = 1186.26 avg(opened_tables (cumulative)) = 330427.44
Host zm08.stanford.edu: MySQL: Total Slow Queries Count
avg(slow queries (cumulative)) = 1118016.51
Host zm08.stanford.edu: Mailboxd: Connection Pool Get Latency
avg(mysql) = 0.18 avg(ldap) = 0.07
Host zm08.stanford.edu: Mailboxd: Lucene IO
avg(Index writes) = 41.72 avg(Index reads) = 93.49
Host zm08.stanford.edu: Mailboxd: LMTP Delivery Throughput
avg(received) = 51.03 avg(delivered) = 75.45
Host zm08.stanford.edu: Mailboxd: LMTP Delivery Rate
avg(received msgs) = 0.41 avg(delivered msgs) = 0.47 avg(received x rcpts) = 0.48
Host zm08.stanford.edu: Mailboxd: Mailbox Add Rate (Delivery Rate)
avg(mailbox add rate) = 0.70
Host zm08.stanford.edu: Mailboxd: Mailbox Add Latency (Delivery Speed)
avg(mailbox add latency) = 82.48
Host zm08.stanford.edu: Mailboxd: Request Rate by Client Protocol
avg(SOAP) = 5.19 avg(IMAP) = 53.75 avg(POP) = 2.81
Host zm08.stanford.edu: Mailboxd: Response Time by Client Protocol
avg(SOAP) = 268.45 avg(IMAP) = 17.45 avg(POP) = 57.52
Host zm08.stanford.edu: Mailboxd: Active Connections by Client Protocol
avg(IMAP) = 126.42 avg(IMAP SSL) = 531.17 avg(POP) = 0.02 avg(POP SSL) = 1.13 avg(SOAP sessions) = 176.34
Host zm08.stanford.edu: Mailboxd: Mailbox Get Count
avg(mailbox get count) = 3183.81
Host zm08.stanford.edu: Mailboxd: Mailbox Get Latency
avg(mailbox get latency) = 0.01
Host zm08.stanford.edu: Mailboxd: Mailbox Cache Hit Rate
avg(mailbox cache hit rate) = 99.96
Host zm08.stanford.edu: Mailboxd: Mailbox Item/Blob Cache Hit Rate
avg(msg blob cache) = 46.17 avg(item metadata cache) = 38.63
Host zm08.stanford.edu: Mailboxd: Minor Garbage Collection Time
avg(minor GC time) = 0.29
Host zm08.stanford.edu: Mailboxd: Major Garbage Collection Time
avg(major GC time) = 0.01
Host zm08.stanford.edu: Mailboxd: Minor Garbage Collection Count
avg(minor GC count) = 7.12
Host zm08.stanford.edu: Mailboxd: Major Garbage Collection Count
avg(major GC count) = 0.01
Host zm08.stanford.edu: Mailboxd: JVM Heap Used
avg(total) = 4788.25 avg(PS Old Gen) = 0.00 avg(CMS Old Gen) = 3902.59 avg(Tenured Gen) = 0.00 avg(Train Gen) = 0.00 avg(PS Eden Space) = 0.00 avg(PS Survivor Space) = 0.00 avg(Par Eden Space) = 801.60 avg(Par Survivor Space) = 84.05 avg(Eden Space) = 0.00 avg(Survivor Space) = 0.00
Host zm08.stanford.edu: Mailboxd: JVM Heap Free
avg(total free) = 3039.06 avg(PS Old Gen free) = 0.00 avg(CMS Old Gen free) = 2118.41 avg(Tenured Gen free) = 0.00 avg(Train Gen free) = 0.00 avg(PS Eden Space free) = 0.00 avg(PS Survivor Space free) = 0.00 avg(Par Eden Space free) = 804.02 avg(Par Survivor Space free) = 116.63 avg(Eden Space free) = 0.00 avg(Survivor Space free) = 0.00
Host zm08.stanford.edu: Mailboxd: JVM Permanent Generation and Code Cache
avg(PS Perm Gen) = 0.00 avg(Perm Gen) = 0.00 avg(CMS Perm Gen) = 143.58 avg(Code Cache) = 35.51 avg(Perm Gen [shared-ro]) = 0.00 avg(Perm Gen [shared-rw]) = 0.00 avg(PS Perm Gen free) = 0.00 avg(Perm Gen free) = 0.00 avg(CMS Perm Gen free) = 111.83 avg(Code Cache free) = 10.84 avg(Perm Gen [shared-ro] free) = 0.00 avg(Perm Gen [shared-rw] free) = 0.00
Host zm08.stanford.edu: convertd: CPU time used
avg(total cputime) = 0.09 avg(user time) = 0.08 avg(system time) = 0.01
Host zm08.stanford.edu: convertd: Resident Memory
avg(convertd rss) = 139.55
Host zm08.stanford.edu: convertd: Processes and Threads
avg(processes) = 5.59 avg(threads) = 5.61
No data available for the following charts:
Host zm08.stanford.edu: Swap Activity
Host zm08.stanford.edu: Disk Throughput: /dev/dm-7
Host zm08.stanford.edu: Disk Throughput: /dev/sdx
Host zm08.stanford.edu: Disk Throughput: /dev/sdab
Host zm08.stanford.edu: Disk Throughput: /dev/sdaa
Host zm08.stanford.edu: Disk Throughput: /dev/sdad
Host zm08.stanford.edu: Disk Throughput: /dev/sdag
Host zm08.stanford.edu: Disk Throughput: /dev/sdaf
Host zm08.stanford.edu: Disk Throughput: /dev/sdy
Host zm08.stanford.edu: Disk Throughput: /dev/sdv
Host zm08.stanford.edu: Disk Throughput: /dev/sdac
Host zm08.stanford.edu: Disk Throughput: /dev/dm-5
Host zm08.stanford.edu: Disk Throughput: /dev/sdw
Host zm08.stanford.edu: Disk Throughput: /dev/sdae
Host zm08.stanford.edu: Disk Throughput: /dev/dm-6
Host zm08.stanford.edu: Disk Throughput: /dev/sdz
Host zm08.stanford.edu: Disk IOPs: /dev/dm-7
Host zm08.stanford.edu: Disk IOPs: /dev/sdx
Host zm08.stanford.edu: Disk IOPs: /dev/sdab
Host zm08.stanford.edu: Disk IOPs: /dev/sdaa
Host zm08.stanford.edu: Disk IOPs: /dev/sdad
Host zm08.stanford.edu: Disk IOPs: /dev/sdag
Host zm08.stanford.edu: Disk IOPs: /dev/sdaf
Host zm08.stanford.edu: Disk IOPs: /dev/sdy
Host zm08.stanford.edu: Disk IOPs: /dev/sdv
Host zm08.stanford.edu: Disk IOPs: /dev/sdac
Host zm08.stanford.edu: Disk IOPs: /dev/dm-5
Host zm08.stanford.edu: Disk IOPs: /dev/sdw
Host zm08.stanford.edu: Disk IOPs: /dev/sdae
Host zm08.stanford.edu: Disk IOPs: /dev/dm-6
Host zm08.stanford.edu: Disk IOPs: /dev/sdz
Host zm08.stanford.edu: Mailboxd: Dirty Lucene Index Writers
Host zm08.stanford.edu: Mailboxd: Lucene IndexWriterCache Hitrate
Host zm08.stanford.edu: nginx: CPU time used
Host zm08.stanford.edu: nginx: Resident Memory
Host zm08.stanford.edu: nginx: Processes and Threads