3 Commits

Author	SHA1	Message	Date
Fedor Loshakov	cf7060ea08	ziomon/ziorep_utilization: add pchid column to physical adapter report ... In ziorep_utilization tool physical adapter report represents PCHID scope, rather than CHPID. PCHID column is added as a very first column of physical adapter report for non-CSV format report. Old version of physical adapter report with CHPID column only looks like: ... CHP|adapter in %-|--bus in %---|--cpu in %---| ID min max avg min max avg min max avg 2020-05-14 14:00:41 60 0 0 0.0 1 1 1.0 0 0 0.0 61 0 0 0.0 1 1 1.0 0 0 0.0 ... New version of physical adapter report with additional PCHID column looks like: ... PCH |CHP|adapter in %-|--bus in %---|--cpu in %---| ID ID min max avg min max avg min max avg 2020-05-14 14:00:41 01c0 60 0 0 0.0 1 1 1.0 0 0 0.0 01c1 61 0 0 0.0 1 1 1.0 0 0 0.0 ... For CSV-format report PCHID column is appended to the end of each record line. For older kernel releases, where PCHID sysfs entry is not available, replace PCHID column value with "n/a". Signed-off-by: Fedor Loshakov <loshakov@linux.ibm.com> Reviewed-by: Benjamin Block <bblock@linux.ibm.com> Reviewed-by: Sakshi Singh <005c7w@linux.ibm.com> Reviewed-by: M Nikhil <nikh1092@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>	2024-12-13 16:26:35 +01:00
Fedor Loshakov	f8331a4b8e	ziomon: correct throughput calculation in ziorep_printers.cpp ... During evaluation of the collected ziomon data from the system with following multipath configuration: $ multipath -ll 3600507630bffc3200000000000005294 dm-0 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw `-+- policy='service-time 0' prio=50 status=active |- 1:0:0:1083457618 sdd 8:48 active ready running `- 0:0:0:1083457618 sda 8:0 active ready running 3600507630bffc3200000000000005394 dm-1 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw `-+- policy='service-time 0' prio=50 status=active |- 1:0:0:1083457619 sdf 8:80 active ready running `- 0:0:0:1083457619 sdb 8:16 active ready running 3600507630bffc3200000000000005494 dm-2 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw `-+- policy='service-time 0' prio=50 status=active |- 1:0:0:1083457620 sdg 8:96 active ready running `- 0:0:0:1083457620 sdc 8:32 active ready running 3600507630bffc3200000000000005594 dm-3 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw `-+- policy='service-time 0' prio=50 status=active |- 1:0:0:1083457621 sdh 8:112 active ready running `- 0:0:0:1083457621 sde 8:64 active ready running there were low throughput values for adapter noticed in ziorep_utilization virtual adapter report: $ ziorep_utilization adp_line_speed.log ... CHP Bus-ID |qdio util.%|queu|fail|-thp in MB/s-|I/O reqs-| ID max avg full erc rd wrt rd wrt 2021-08-18 12:56:44 61/0.0.1946 32.8 3.1 0 0 0.0 84.5 21 204K 12:57:04 ... there were also low values for throughput of devices noticed in ziorep_traffic report. And were no aggregation of throughput for different aggregation parameters provided: $ ziorep_traffic adp_line_speed.log -i 0 WWPN LUN |I/O rt MB/s|thrp in MB/s-|... min max avg stdev ... 2021-08-18 12:58:24 0x500507630b09c320:0x4052409400000000 0.0 219.2 85.7 3.352K ... 0x500507630b09c320:0x4053409400000000 0.0 348.6 84.6 3.330K ... 0x500507630b09c320:0x4054409400000000 0.0 268.6 84.0 3.317K ... 0x500507630b09c320:0x4055409400000000 0.0 354.2 83.7 3.312K ... $ ziorep_traffic adp_line_speed.log -i 0 -Cu Bus-ID |I/O rt MB/s|thrp in MB/s-|... min max avg stdev ... 2021-08-18 12:58:24 0.0.1946 0.0 354.2 84.5 3.328K ... although, iostat tool showed decent throughput values for each scsi disk, which belongs to investigated zfcp adapter. In this example each scsi disk has throughput more than 300MB/s, which is much larger, than 84.5MB/s throughput for the adapter: $ iostat -x 1 ... Device r/s w/s rkB/s wkB/s ... dasda 0.00 0.00 0.00 0.00 ... dasdb 0.00 0.00 0.00 0.00 ... sda 0.00 2556.00 0.00 327168.00 ... sdc 0.00 2554.00 0.00 326912.00 ... sdb 0.00 2559.00 0.00 327552.00 ... sdf 0.00 2865.00 0.00 366720.00 ... sdd 0.00 2843.00 0.00 363904.00 ... sdg 0.00 2845.00 0.00 364160.00 ... sde 0.00 2471.00 0.00 315416.00 ... sdh 0.00 2768.00 0.00 353768.00 ... dm-0 0.00 5399.00 0.00 691072.00 ... dm-1 0.00 5424.00 0.00 694272.00 ... dm-2 0.00 5400.00 0.00 691200.00 ... dm-3 0.00 5240.00 0.00 669312.00 ... Use Frameset interval size for calculation of throughput of zfcp adapter instead of d2c (dispatch to complete) time of request, which is used for I/O rate calculation. Also use Frameset interval instead of total_latency.sum (which in fact is a sum of d2c times for each repuest in specifed interval). Use calc_avg() function for throughput calculation. With fix applied, virtual adapter report now contains correct value for adpater throughput for specified interval: $ ziorep_utilization adp_line_speed.log ... CHP Bus-ID |qdio util.%|queu|fail|-thp in MB/s-|I/O reqs-| ID max avg full erc rd wrt rd wrt 2021-08-18 12:56:44 61/0.0.1946 32.8 3.1 0 0 0.0 1.336K 21 204K ... With fix applied, traffic report now contains correct values of throughput for each device and aggregation now works correctly: $ ziorep_traffic adp_line_speed.log -i 0 WWPN LUN |I/O rt MB/s|thrp in MB/s-|... min max avg stdev ... 2021-08-18 12:58:24 0x500507630b09c320:0x4052409400000000 0.0 219.2 339.6 3.352K ... 0x500507630b09c320:0x4053409400000000 0.0 348.6 335.4 3.330K ... 0x500507630b09c320:0x4054409400000000 0.0 268.6 333.1 3.317K ... 0x500507630b09c320:0x4055409400000000 0.0 354.2 331.9 3.312K ... $ ziorep_traffic adp_line_speed.log -i 0 -Cu Bus-ID |I/O rt MB/s|thrp in MB/s-|... min max avg stdev ... 2021-08-18 12:58:24 0.0.1946 0.0 354.2 1.340K 3.328K ... Signed-off-by: Fedor Loshakov <loshakov@linux.ibm.com> Reviewed-by: Benjamin Block <bblock@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>	2021-11-10 11:50:58 +01:00
Michael Holzheu	b627b8d8e1	Initial s390-tools-2.0.0 import ... This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>	2017-08-21 10:55:40 +02:00