search for: set_max_bw

Hi All, This is the dm-ioband version 1.12.0 release. dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver and can control bandwidth on per partition, per user, per process , per virtual machine (such as KVM or Xen) basis. The major change of this release is that a new bandwidth control policy "range-bw" is supported. This policy is developed by Dong-Jae Kang,

Hi All, This is the dm-ioband version 1.12.0 release. dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver and can control bandwidth on per partition, per user, per process , per virtual machine (such as KVM or Xen) basis. The major change of this release is that a new bandwidth control policy "range-bw" is supported. This policy is developed by Dong-Jae Kang,

Hi All, This is the dm-ioband version 1.12.0 release. dm-ioband is an I/O bandwidth controller implemented as a device-mapper driver and can control bandwidth on per partition, per user, per process , per virtual machine (such as KVM or Xen) basis. The major change of this release is that a new bandwidth control policy "range-bw" is supported. This policy is developed by Dong-Jae Kang,

...c_limit = 1; + } else { + list_for_each_entry(p, &dp->g_groups, c_list) { + p->c_limit = dp->g_io_limit * 2 * p->c_min_bw / + dp->g_min_bw_total / OVER_IO_RATE + 1; + } + } + + return; +} + +/* + * Allocate the max_bw and max_bw_token to the pointed group + */ +static void set_max_bw(struct ioband_group *gp, int new) +{ + struct ioband_device *dp = gp->c_banddev; + int token_unit; + + token_unit = dp->g_token_unit; + + dp->g_max_bw_total += (new - gp->c_max_bw); + gp->c_max_bw = new; + gp->c_max_bw_token = convert_bw_to_token(new, token_unit); + + range_bw_tim...

...c_limit = 1; + } else { + list_for_each_entry(p, &dp->g_groups, c_list) { + p->c_limit = dp->g_io_limit * 2 * p->c_min_bw / + dp->g_min_bw_total / OVER_IO_RATE + 1; + } + } + + return; +} + +/* + * Allocate the max_bw and max_bw_token to the pointed group + */ +static void set_max_bw(struct ioband_group *gp, int new) +{ + struct ioband_device *dp = gp->c_banddev; + int token_unit; + + token_unit = dp->g_token_unit; + + dp->g_max_bw_total += (new - gp->c_max_bw); + gp->c_max_bw = new; + gp->c_max_bw_token = convert_bw_to_token(new, token_unit); + + range_bw_tim...

...c_limit = 1; + } else { + list_for_each_entry(p, &dp->g_groups, c_list) { + p->c_limit = dp->g_io_limit * 2 * p->c_min_bw / + dp->g_min_bw_total / OVER_IO_RATE + 1; + } + } + + return; +} + +/* + * Allocate the max_bw and max_bw_token to the pointed group + */ +static void set_max_bw(struct ioband_group *gp, int new) +{ + struct ioband_device *dp = gp->c_banddev; + int token_unit; + + token_unit = dp->g_token_unit; + + dp->g_max_bw_total += (new - gp->c_max_bw); + gp->c_max_bw = new; + gp->c_max_bw_token = convert_bw_to_token(new, token_unit); + + range_bw_tim...

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

...c_limit = 1; + } else { + list_for_each_entry(p, &dp->g_groups, c_list) { + p->c_limit = dp->g_io_limit * 2 * p->c_min_bw / + dp->g_min_bw_total / OVER_IO_RATE + 1; + } + } + + return; +} + +/* + * Allocate the max_bw and max_bw_token to the pointed group + */ +static void set_max_bw(struct ioband_group *gp, int new) +{ + struct ioband_device *dp = gp->c_banddev; + int token_unit; + + token_unit = dp->g_token_unit; + + dp->g_max_bw_total += (new - gp->c_max_bw); + gp->c_max_bw = new; + gp->c_max_bw_token = convert_bw_to_token(new, token_unit); + + range_bw_tim...

...c_limit = 1; + } else { + list_for_each_entry(p, &dp->g_groups, c_list) { + p->c_limit = dp->g_io_limit * 2 * p->c_min_bw / + dp->g_min_bw_total / OVER_IO_RATE + 1; + } + } + + return; +} + +/* + * Allocate the max_bw and max_bw_token to the pointed group + */ +static void set_max_bw(struct ioband_group *gp, int new) +{ + struct ioband_device *dp = gp->c_banddev; + int token_unit; + + token_unit = dp->g_token_unit; + + dp->g_max_bw_total += (new - gp->c_max_bw); + gp->c_max_bw = new; + gp->c_max_bw_token = convert_bw_to_token(new, token_unit); + + range_bw_tim...

...c_limit = 1; + } else { + list_for_each_entry(p, &dp->g_groups, c_list) { + p->c_limit = dp->g_io_limit * 2 * p->c_min_bw / + dp->g_min_bw_total / OVER_IO_RATE + 1; + } + } + + return; +} + +/* + * Allocate the max_bw and max_bw_token to the pointed group + */ +static void set_max_bw(struct ioband_group *gp, int new) +{ + struct ioband_device *dp = gp->c_banddev; + int token_unit; + + token_unit = dp->g_token_unit; + + dp->g_max_bw_total += (new - gp->c_max_bw); + gp->c_max_bw = new; + gp->c_max_bw_token = convert_bw_to_token(new, token_unit); + + range_bw_tim...

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The